Annual report for... Friedburg Marsh mitigation site, Forsyth County, project no. 6.628001T, TIP no. R-2247 |
Previous | 1 of 4 | Next |
|
small (250x250 max)
medium (500x500 max)
Large
Extra Large
large ( > 500x500)
Full Resolution
|
This page
All
|
ANNUAL REPORT FOR 2004 Friedburg Marsh Mitigation Site Forsyth County Project N0. 6.628001T TIP No. R-2247 Prepared By: Office of Natural Environment & Roadside Environmental Unit North Carolina Department of Transportation December 2004 TABLE OF CONTENTS SUMMARY ...........................................................................................................1 1.0 INTRODUCTION........................................................................................2 1.1 Project Description ..........................................................................2 1.2 Purpose ...........................................................................................2 1.3 Project History .................................................................................4 2.0 HYDROLOGY ............................................................................................4 2.1 Success Criteria ..............................................................................4 2.2 Hydrologic Description.....................................................................5 2.3 Results of Hydrologic Monitoring.....................................................5 2.3.1 Site Data...............................................................................5 2.3.2 Climatic Data ........................................................................9 2.4 Conclusions.....................................................................................9 3.0 VEGETATION..........................................................................................11 3.1 Results of Vegetation Monitoring...................................................11 3.2 Conclusions.............................................................................................11 4.0 OVERALL CONCLUSIONS/RECOMMENDATIONS ...............................12 TABLES/FIGURES/APPENDICES Table 1. 2004 Hydrologic Monitoring Results ......................................................7 Figure 1. Friedburg Marsh Vicinity Map ...............................................................3 Figure 2. Friedburg Marsh Monitoring Gauge Locations......................................6 Figure 3. Friedburg Marsh 2004 Hydrologic Results............................................8 Figure 4. Friedburg Marsh 30-70 Percentile Graph, Yadkinville, NC .................10 Appendix A. Gauge Data Graphs Appendix B. Site Photographs 1 SUMMARY The following report summarizes the monitoring activities that have occurred in 2004 at the Friedburg Marsh Mitigation Site. Friedburg Marsh was constructed in the winter of 1999 and spring of 2000. Monitoring activities in 2004 represent the fourth year following construction. The site must demonstrate hydrologic success during the five-year monitoring period or until the site is deemed successful. Friedburg Marsh is composed of existing wetlands, upland buffer areas, wetland restoration areas, and wetland creation areas. A total of twelve groundwater-monitoring gauges were installed on the site. There was no planting of trees or herbaceous species at Friedburg, so vegetation monitoring is not required. Qualitative visual observations in conjunction with the hydrologic monitoring of the existing vegetation were made. For the 2004 monitoring year, the data indicates that all twelve of the groundwater gauges met the hydrologic success criterion of saturation within twelve inches of the surface for more than 5% of the growing season. Three of the gauges reported saturation/inundation for the entire growing season. The vegetation in the restoration areas was dominated by wetland plant species and included a variety of other species, as well. In November of 2004, approximately six acres of the site were hand cleared in order to improve the Bog Turtle habitat as recommended by Dennis Herman, the Coordinator of Living Collections with the North Carolina Museum of Natural Sciences. Based on agency comments from the 2003 annual monitoring reports meeting, NCDOT proposes to discontinue hydrology and vegetation monitoring at the Friedburg Mitigation Site. 2 1.0 INTRODUCTION 1.1 Project Description The Friedburg Marsh Mitigation Site, located in southern Forsyth County (Figure 1), is the easternmost known location (in North Carolina) for the bog turtle (Clemmys muhlenbergii). The southern population of bog turtle is federally listed as a Threatened Species due to Similarity of Appearance. Due to the diverse wetland communities at this marsh, the Piedmont Land Conservancy and the North Carolina Natural Heritage Program consider the site a regionally significant natural site. The Friedburg Marsh Mitigation Plan calls for the preservation and enhancement of the existing wetland habitat, as well as restoration and creation of additional bog turtle habitat. The Friedburg Marsh Mitigation Site consists of existing wetlands (3.8 acres), upland buffer (38 acres), and wetland restoration/creation areas (5.7 acres). The restoration/creation areas were constructed in 1999/2000 to increase hydrology and improve bog turtle habitat. Construction activities involved filling ditches, constructing ditch plugs, grading to reflect groundwater profiles, removing invasive woody vegetation, and installing a new outlet for the upper pond area. No vegetation planting was conducted. Friedburg Marsh is located in the Muddy Creek portion of the Yadkin River Basin. This site was created to offset wetland impacts associated with the Winston- Salem Outer Loop (TIP No. R-2247). 1.2 Purpose In order to demonstrate successful mitigation, hydrologic criteria must be met during the five years of monitoring. The following report details the results of hydrologic monitoring during the 2004-year at the Friedburg Marsh Mitigation Site. The 2004-year is the fourth monitoring year following site construction in 2000. Included in this report are analyses of hydrology and vegetation monitoring results, as well as local climate conditions throughout the growing season. 3 Figure 1. Friedburg Marsh Vicinity Map Friedburg Marsh Mitigation Site Winston Salem 4 1.3 Project History May 1997 Feasibility Study Conducted November 1997 Site Purchased by NCDOT, Initial Monitoring Wells Installed. 1999 Mitigation Plan Developed Winter-Spring 2000 Grading and Construction March 2000 Additional Monitoring Wells Installed March-November 2001 Hydrology Monitoring (Year 1) July 2001 Vegetation Monitoring (Year 1) March-November 2002 Hydrology Monitoring (Year 2) August 2002 Vegetation Monitoring (Year 2) March-November 2003 Hydrology Monitoring (Year 3) September 2003 Vegetation Monitoring (Year 3) March-November 2004 Hydrology Monitoring (Year 4) July 2004 Vegetation Monitoring (Year 4) November 2004 Vegetation Removal – Habitat Improvement 2.0 HYDROLOGY 2.1 Success Criteria The success criteria for hydrology states that wetland hydrology will be established when water inundates or saturates (within 12 inches of the surface) consecutively for 5.0 percent of the growing season. The growing season in Forsyth County begins March 28th and ends November 10th (228 days). These dates correspond to a 50 percent probability that temperatures will drop to 28ºF or lower after March 28 and before November 10 (Soil Survey of Forsyth County, 1976, p.63). Five percent of the growing season translates to twelve consecutive days of inundation or saturation. Local climate must also represent average conditions for the area. 5 2.2 Hydrologic Description RDS WL40 and WL20 units record all groundwater and surface water data (Figure 2). The groundwater gauges record groundwater data daily. The gauges are downloaded in the field on a monthly basis. In November 1997, six groundwater gauges were installed at Friedburg Marsh to monitor pre-construction hydrology and develop a mitigation plan. Gauge 7 (DL9D90A70) was installed to record surface water and groundwater depths. Following construction, six additional groundwater gauges were installed, of which Gauge 6 (S4940BB) was installed to record surface water and groundwater depths. 2.3 Results of Hydrologic Monitoring 2.3.1 Site Data The maximum number of days that the groundwater was within twelve inches of the surface was determined for each gauge. This number was then converted into a percentage of the 228-day growing season (March 28 – November 10). The results are presented in Table 1 and Figure 3. Appendix A contains a plot of the groundwater depth for each gauge. The maximum number of consecutive days and percentage of growing season of saturation/inundation is noted on each plot. The individual precipitation events, shown on the monitoring gauge graphs as bars, represent data provided by the NC State Climate Office. Figure 3 provides a graphical representation of the hydrologic results. Gauges highlighted in blue indicate wetland hydrology for more than 12.5% of the growing season. Gauges highlighted in red show hydrology between 8% and 12.5% of the growing season, while those in green indicate hydrology between 5% and 8%. Gauges highlighted in black indicate no wetland hydrology (less than 5% of the growing season) 6 Figure 2. Friedburg Marsh Monitoring Gauge Location 7 Table 1. 2004 Hydrologic Monitoring Results Monitoring Gauge <5% 5% - 8% 8% - 12.5% >12.5% Actual % Success Dates G-1 S4CFF78* r 68.4 April 2-Sept 4 Sept 7-Nov 11 G-2 S31F7FE* r 100 March 28-Nov 10 G-3 S50446C* r 100 March 28-Nov 10 G-4 S49411F* r 33.3 March 28-June 11 Sept 8-Nov 10 G-5 S50417A* r 100 March 28-Nov 10 G-6 S4940BB* r 48.7 April 2-July 1 July 23-Nov 10 G-7 DL9D90A70* r 99.1 March 30-Nov 10 G-8 DL8E8CF62* r 86.8 April 27-Nov 10 G-9 DL8E85A2* r 50.0 March 30-July 21 Sept 28-Nov 10 G-10 S213FD4 r 10.1 Oct 19-Nov 10 G-11 S51C0EB* r 28.1 March 28-May 13 Sept 8-Nov 10 G-12 S4940B9* r 48.7 April 22-July 1 July 23-Nov 10 *Gauge met the hydrology criteria during an average rainfall month (February, April, May, July, and August). 8 Figure 3. Friedburg Marsh 2004 Hydrologic Results �� 9 2.3.2 Climatic Data Figure 4 is a comparison of monthly rainfall for the period of November 2003 through November 2004 to historical precipitation (collected between 1973 and 2004) for Yadkinville, North Carolina. This comparison gives an indication of how 2004 relates to historical data in terms of climate conditions. The NC State Climate Office provided all local rainfall information. For the 2004-year, September and November experienced above average rainfall. The months of January, March, June, and October recorded below average rainfall for the site, while November (’03), December (’03), February, April, May, July, and August recorded average rainfall. Overall, 2004 experienced an average rainfall year. 2.4 Conclusions For the 2004 monitoring year, the data indicates that all twelve of the groundwater gauges met the hydrologic success criterion of saturation within twelve inches of the surface for more than 5% of the growing season. Three of the gauges reported saturation/inundation for the entire growing season. NCDOT proposes to discontinue hydrology monitoring at the Friedburg Mitigation Site. 10 Figure 4. 30-70 Percentile Graph Friedburg Marsh 30-70 Percentile Graph Yadkinville, NC 0 2 4 6 8 10 12 Nov 03' Dec 03' Jan 04' Feb 04' Mar 04' Apr 04' May Jun 04' Jul 04' Aug Sep 04' Oct 04' Nov 04' Dec 04' YEAR Precipitation 2003 Rainfall 2004 Rainfall 30th Percentile 70th Percentile 30th Percentile 70th Percentile 11 3.0 VEGETATION: FRIEDBURG MARSH (YEAR 4 MONITORING) 3.1 Results of Vegetation Monitoring No planting of trees or herbaceous species was undertaken as part of the Friedburg Marsh mitigation. Therefore, no quantitative vegetation monitoring was required. Qualitative observations of common species have been made in conjunction with hydrologic monitoring. The following species are found in the creation/restoration area: spike rush, pickerel weed, bulrush, Juncus sp., cattail, poplar, and green ash are the more wet tolerant species. Also found were: foxtail, broomsedge, beggar’s ticks, barnyard grass, goldenrod, sweetgum, and multi-flora rose. The presence of these species in these areas has not affected the overall quality of the bog turtle habitat at Friedburg Marsh. 3.2 Conclusions The vegetation in the restoration areas is dominated by wetland plant species and includes a variety of other species, as well. In November of 2004, approximately six acres of the site were hand cleared in order to improve the Bog Turtle habitat as recommended by Dennis Herman, the Coordinator of Living Collections with the North Carolina Museum of Natural Sciences. NCDOT proposes to discontinue vegetation monitoring at the Friedburg Mitigation Site. 12 4.0 OVERALL CONCLUSIONS/RECOMMENDATIONS The 2004-year is the fourth consecutive year that the Friedburg March Mitigation Site has been monitored. For the 2004 monitoring year, the data indicates that all twelve of the groundwater gauges met the hydrologic success criteria of saturation within twelve inches of the surface for more than 5% of the growing season. Three of the gauges reported saturation/inundation for the entire growing season. The vegetation in the restoration areas was dominated by wetland plant species and includes a variety of other species, as well. In November of 2004, approximately six acres of the site were hand cleared in order to improve the Bog Turtle habitat as recommended by Dennis Herman, the Coordinator of Living Collections with the North Carolina Museum of Natural Sciences. Based on agency comments from the 2003 annual monitoring reports meeting, NCDOT proposes to discontinue hydrology and vegetation monitoring at the Friedburg Mitigation Site. APPENDIX A GAUGE DATA GRAPHS APPENDIX B SITE PHOTOGRAPHS Friedburg Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 Photo 6 2004
Object Description
Description
Title | Annual report for... Friedburg Marsh mitigation site, Forsyth County, project no. 6.628001T, TIP no. R-2247 |
Other Title | Friedburg Marsh mitigation site, Forsyth County |
Date | 2004-12 |
Description | 2004 |
Digital Characteristics-A | 1096 KB; 19 p. |
Digital Format | application/pdf |
Full Text | ANNUAL REPORT FOR 2004 Friedburg Marsh Mitigation Site Forsyth County Project N0. 6.628001T TIP No. R-2247 Prepared By: Office of Natural Environment & Roadside Environmental Unit North Carolina Department of Transportation December 2004 TABLE OF CONTENTS SUMMARY ...........................................................................................................1 1.0 INTRODUCTION........................................................................................2 1.1 Project Description ..........................................................................2 1.2 Purpose ...........................................................................................2 1.3 Project History .................................................................................4 2.0 HYDROLOGY ............................................................................................4 2.1 Success Criteria ..............................................................................4 2.2 Hydrologic Description.....................................................................5 2.3 Results of Hydrologic Monitoring.....................................................5 2.3.1 Site Data...............................................................................5 2.3.2 Climatic Data ........................................................................9 2.4 Conclusions.....................................................................................9 3.0 VEGETATION..........................................................................................11 3.1 Results of Vegetation Monitoring...................................................11 3.2 Conclusions.............................................................................................11 4.0 OVERALL CONCLUSIONS/RECOMMENDATIONS ...............................12 TABLES/FIGURES/APPENDICES Table 1. 2004 Hydrologic Monitoring Results ......................................................7 Figure 1. Friedburg Marsh Vicinity Map ...............................................................3 Figure 2. Friedburg Marsh Monitoring Gauge Locations......................................6 Figure 3. Friedburg Marsh 2004 Hydrologic Results............................................8 Figure 4. Friedburg Marsh 30-70 Percentile Graph, Yadkinville, NC .................10 Appendix A. Gauge Data Graphs Appendix B. Site Photographs 1 SUMMARY The following report summarizes the monitoring activities that have occurred in 2004 at the Friedburg Marsh Mitigation Site. Friedburg Marsh was constructed in the winter of 1999 and spring of 2000. Monitoring activities in 2004 represent the fourth year following construction. The site must demonstrate hydrologic success during the five-year monitoring period or until the site is deemed successful. Friedburg Marsh is composed of existing wetlands, upland buffer areas, wetland restoration areas, and wetland creation areas. A total of twelve groundwater-monitoring gauges were installed on the site. There was no planting of trees or herbaceous species at Friedburg, so vegetation monitoring is not required. Qualitative visual observations in conjunction with the hydrologic monitoring of the existing vegetation were made. For the 2004 monitoring year, the data indicates that all twelve of the groundwater gauges met the hydrologic success criterion of saturation within twelve inches of the surface for more than 5% of the growing season. Three of the gauges reported saturation/inundation for the entire growing season. The vegetation in the restoration areas was dominated by wetland plant species and included a variety of other species, as well. In November of 2004, approximately six acres of the site were hand cleared in order to improve the Bog Turtle habitat as recommended by Dennis Herman, the Coordinator of Living Collections with the North Carolina Museum of Natural Sciences. Based on agency comments from the 2003 annual monitoring reports meeting, NCDOT proposes to discontinue hydrology and vegetation monitoring at the Friedburg Mitigation Site. 2 1.0 INTRODUCTION 1.1 Project Description The Friedburg Marsh Mitigation Site, located in southern Forsyth County (Figure 1), is the easternmost known location (in North Carolina) for the bog turtle (Clemmys muhlenbergii). The southern population of bog turtle is federally listed as a Threatened Species due to Similarity of Appearance. Due to the diverse wetland communities at this marsh, the Piedmont Land Conservancy and the North Carolina Natural Heritage Program consider the site a regionally significant natural site. The Friedburg Marsh Mitigation Plan calls for the preservation and enhancement of the existing wetland habitat, as well as restoration and creation of additional bog turtle habitat. The Friedburg Marsh Mitigation Site consists of existing wetlands (3.8 acres), upland buffer (38 acres), and wetland restoration/creation areas (5.7 acres). The restoration/creation areas were constructed in 1999/2000 to increase hydrology and improve bog turtle habitat. Construction activities involved filling ditches, constructing ditch plugs, grading to reflect groundwater profiles, removing invasive woody vegetation, and installing a new outlet for the upper pond area. No vegetation planting was conducted. Friedburg Marsh is located in the Muddy Creek portion of the Yadkin River Basin. This site was created to offset wetland impacts associated with the Winston- Salem Outer Loop (TIP No. R-2247). 1.2 Purpose In order to demonstrate successful mitigation, hydrologic criteria must be met during the five years of monitoring. The following report details the results of hydrologic monitoring during the 2004-year at the Friedburg Marsh Mitigation Site. The 2004-year is the fourth monitoring year following site construction in 2000. Included in this report are analyses of hydrology and vegetation monitoring results, as well as local climate conditions throughout the growing season. 3 Figure 1. Friedburg Marsh Vicinity Map Friedburg Marsh Mitigation Site Winston Salem 4 1.3 Project History May 1997 Feasibility Study Conducted November 1997 Site Purchased by NCDOT, Initial Monitoring Wells Installed. 1999 Mitigation Plan Developed Winter-Spring 2000 Grading and Construction March 2000 Additional Monitoring Wells Installed March-November 2001 Hydrology Monitoring (Year 1) July 2001 Vegetation Monitoring (Year 1) March-November 2002 Hydrology Monitoring (Year 2) August 2002 Vegetation Monitoring (Year 2) March-November 2003 Hydrology Monitoring (Year 3) September 2003 Vegetation Monitoring (Year 3) March-November 2004 Hydrology Monitoring (Year 4) July 2004 Vegetation Monitoring (Year 4) November 2004 Vegetation Removal – Habitat Improvement 2.0 HYDROLOGY 2.1 Success Criteria The success criteria for hydrology states that wetland hydrology will be established when water inundates or saturates (within 12 inches of the surface) consecutively for 5.0 percent of the growing season. The growing season in Forsyth County begins March 28th and ends November 10th (228 days). These dates correspond to a 50 percent probability that temperatures will drop to 28ºF or lower after March 28 and before November 10 (Soil Survey of Forsyth County, 1976, p.63). Five percent of the growing season translates to twelve consecutive days of inundation or saturation. Local climate must also represent average conditions for the area. 5 2.2 Hydrologic Description RDS WL40 and WL20 units record all groundwater and surface water data (Figure 2). The groundwater gauges record groundwater data daily. The gauges are downloaded in the field on a monthly basis. In November 1997, six groundwater gauges were installed at Friedburg Marsh to monitor pre-construction hydrology and develop a mitigation plan. Gauge 7 (DL9D90A70) was installed to record surface water and groundwater depths. Following construction, six additional groundwater gauges were installed, of which Gauge 6 (S4940BB) was installed to record surface water and groundwater depths. 2.3 Results of Hydrologic Monitoring 2.3.1 Site Data The maximum number of days that the groundwater was within twelve inches of the surface was determined for each gauge. This number was then converted into a percentage of the 228-day growing season (March 28 – November 10). The results are presented in Table 1 and Figure 3. Appendix A contains a plot of the groundwater depth for each gauge. The maximum number of consecutive days and percentage of growing season of saturation/inundation is noted on each plot. The individual precipitation events, shown on the monitoring gauge graphs as bars, represent data provided by the NC State Climate Office. Figure 3 provides a graphical representation of the hydrologic results. Gauges highlighted in blue indicate wetland hydrology for more than 12.5% of the growing season. Gauges highlighted in red show hydrology between 8% and 12.5% of the growing season, while those in green indicate hydrology between 5% and 8%. Gauges highlighted in black indicate no wetland hydrology (less than 5% of the growing season) 6 Figure 2. Friedburg Marsh Monitoring Gauge Location 7 Table 1. 2004 Hydrologic Monitoring Results Monitoring Gauge <5% 5% - 8% 8% - 12.5% >12.5% Actual % Success Dates G-1 S4CFF78* r 68.4 April 2-Sept 4 Sept 7-Nov 11 G-2 S31F7FE* r 100 March 28-Nov 10 G-3 S50446C* r 100 March 28-Nov 10 G-4 S49411F* r 33.3 March 28-June 11 Sept 8-Nov 10 G-5 S50417A* r 100 March 28-Nov 10 G-6 S4940BB* r 48.7 April 2-July 1 July 23-Nov 10 G-7 DL9D90A70* r 99.1 March 30-Nov 10 G-8 DL8E8CF62* r 86.8 April 27-Nov 10 G-9 DL8E85A2* r 50.0 March 30-July 21 Sept 28-Nov 10 G-10 S213FD4 r 10.1 Oct 19-Nov 10 G-11 S51C0EB* r 28.1 March 28-May 13 Sept 8-Nov 10 G-12 S4940B9* r 48.7 April 22-July 1 July 23-Nov 10 *Gauge met the hydrology criteria during an average rainfall month (February, April, May, July, and August). 8 Figure 3. Friedburg Marsh 2004 Hydrologic Results �� 9 2.3.2 Climatic Data Figure 4 is a comparison of monthly rainfall for the period of November 2003 through November 2004 to historical precipitation (collected between 1973 and 2004) for Yadkinville, North Carolina. This comparison gives an indication of how 2004 relates to historical data in terms of climate conditions. The NC State Climate Office provided all local rainfall information. For the 2004-year, September and November experienced above average rainfall. The months of January, March, June, and October recorded below average rainfall for the site, while November (’03), December (’03), February, April, May, July, and August recorded average rainfall. Overall, 2004 experienced an average rainfall year. 2.4 Conclusions For the 2004 monitoring year, the data indicates that all twelve of the groundwater gauges met the hydrologic success criterion of saturation within twelve inches of the surface for more than 5% of the growing season. Three of the gauges reported saturation/inundation for the entire growing season. NCDOT proposes to discontinue hydrology monitoring at the Friedburg Mitigation Site. 10 Figure 4. 30-70 Percentile Graph Friedburg Marsh 30-70 Percentile Graph Yadkinville, NC 0 2 4 6 8 10 12 Nov 03' Dec 03' Jan 04' Feb 04' Mar 04' Apr 04' May Jun 04' Jul 04' Aug Sep 04' Oct 04' Nov 04' Dec 04' YEAR Precipitation 2003 Rainfall 2004 Rainfall 30th Percentile 70th Percentile 30th Percentile 70th Percentile 11 3.0 VEGETATION: FRIEDBURG MARSH (YEAR 4 MONITORING) 3.1 Results of Vegetation Monitoring No planting of trees or herbaceous species was undertaken as part of the Friedburg Marsh mitigation. Therefore, no quantitative vegetation monitoring was required. Qualitative observations of common species have been made in conjunction with hydrologic monitoring. The following species are found in the creation/restoration area: spike rush, pickerel weed, bulrush, Juncus sp., cattail, poplar, and green ash are the more wet tolerant species. Also found were: foxtail, broomsedge, beggar’s ticks, barnyard grass, goldenrod, sweetgum, and multi-flora rose. The presence of these species in these areas has not affected the overall quality of the bog turtle habitat at Friedburg Marsh. 3.2 Conclusions The vegetation in the restoration areas is dominated by wetland plant species and includes a variety of other species, as well. In November of 2004, approximately six acres of the site were hand cleared in order to improve the Bog Turtle habitat as recommended by Dennis Herman, the Coordinator of Living Collections with the North Carolina Museum of Natural Sciences. NCDOT proposes to discontinue vegetation monitoring at the Friedburg Mitigation Site. 12 4.0 OVERALL CONCLUSIONS/RECOMMENDATIONS The 2004-year is the fourth consecutive year that the Friedburg March Mitigation Site has been monitored. For the 2004 monitoring year, the data indicates that all twelve of the groundwater gauges met the hydrologic success criteria of saturation within twelve inches of the surface for more than 5% of the growing season. Three of the gauges reported saturation/inundation for the entire growing season. The vegetation in the restoration areas was dominated by wetland plant species and includes a variety of other species, as well. In November of 2004, approximately six acres of the site were hand cleared in order to improve the Bog Turtle habitat as recommended by Dennis Herman, the Coordinator of Living Collections with the North Carolina Museum of Natural Sciences. Based on agency comments from the 2003 annual monitoring reports meeting, NCDOT proposes to discontinue hydrology and vegetation monitoring at the Friedburg Mitigation Site. APPENDIX A GAUGE DATA GRAPHS APPENDIX B SITE PHOTOGRAPHS Friedburg Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 Photo 6 2004 |
OCLC number | 780539085 |