341:
83:
52:
31:
314:
90:
59:
406:, an active Army base, is located near the research center. In October 1991, 7,600 acres (31 km) were transferred from the base to the Patuxent National Research Refuge. In January 1993, another 500 acres (2.0 km) was transferred as part of the Defense Appropriation Bills for 1991 and 1992, respectively.
353:) is on Patuxent Research Refuge property. In addition to these dwellings, there still exist 19 cemeteries between the center and Fort Meade whose headstones bear the inscriptions of both the Snowdens and Duvalls, in addition to lesser-known surnames such as the Woodwards, Donaldsons, and Waters families.
365:
and Lemons
Bridges linked Prince Georges and Anne Arundel Counties. The former still exists as a newer bridge rebuilt in the 1940s, whereas cement posts along either side of the river are the only vestiges of Lemon's Bridge. The old Telegraph Road, which utilized Duvall Bridge, once linked Baltimore
409:
A September 2007 environmental impact report described the expansion of Fort Meade, and particularly the proposed two additional 18-hole golf courses, as a "significant threat to the biological and territorial integrity of the
Patuxent Research Refuge, a unique national interest in the forefront of
348:
The land that currently encompasses the 12,841 acres (51.97 km) of
Patuxent Research Refuge was primarily used for farming from the colonial period until at least World War I. Prominent landowners, such as the Snowden and Duvall families, owned significant portions of land during the colonial
235:
Since its establishment in 1936 as the first wildlife experiment station in the United States, the
Patuxent Wildlife Research Center has been responsible for wildlife and applied environmental research, for transmitting research findings to those responsible for managing the United States
360:
bisects the refuge into the North and
Central/South Tracts) were transferred in 1991 from the Defense Department's Fort Meade landholdings. Long before the area became a densely wooded haven for wildlife amidst a heavily populated urban corridor, the
410:
scientific research and protection." In response, the Army said that it was taking steps to limit the environmental damage but that the golf courses were needed for "maintaining the quality of life for soldiers and their families."
2233:
636:
427:
2248:
922:
1081:
2223:
866:
876:
830:
2138:
2108:
1048:
800:
329:. The USGS Biological Resources Division, of which the Center is a part, works with others to provide the information needed to manage the United States' biological resources.
413:
The historic golf course that had served as the centerpiece of Fort Meade since 1950 closed on May 1, 2012, and, as of June 2022, no new golf courses were under construction.
1620:
332:
The center also receives funds directly from agencies benefiting from its research and from other partner organizations, such as those co-located at its Laurel headquarters.
1879:
861:
82:
2113:
51:
1585:
904:
146:
627:
1202:
1068:
940:
853:
2243:
1058:
1710:
1560:
721:
560:
2054:
1425:
1023:
1685:
1490:
1780:
1730:
793:
2258:
2253:
2218:
2182:
1660:
975:
607:
326:
215:(USGS). The EESC is the largest of the 15 USGS research centers. The Patuxent facility is located on the grounds of the 12,841-acre (51.97 km)
1725:
1705:
1680:
1675:
1580:
821:
1700:
1630:
1590:
1645:
1460:
1013:
1008:
508:
1665:
1570:
1530:
1510:
1495:
1440:
809:
786:
1949:
1600:
349:
era and well into the 19th century. The legacy of the
Snowden family can still be found in two historic homes in the area, one of which (
2148:
1785:
1770:
1750:
1735:
1635:
1555:
1515:
1475:
1470:
1122:
1003:
930:
894:
884:
299:
116:
366:
and
Washington, and today it is still possible to see century-old telegraph poles along the road in both the Central and South Tracts.
2164:
2004:
1605:
1525:
1520:
1445:
1307:
1874:
1640:
1615:
1610:
1575:
1505:
1317:
980:
1715:
1670:
1595:
362:
1545:
1500:
1849:
1485:
1076:
350:
181:
658:
2228:
2069:
1924:
1690:
1655:
1565:
1455:
1365:
1347:
1332:
889:
388:
220:
1480:
1450:
1312:
1625:
2133:
1465:
1415:
1207:
843:
838:
1775:
1765:
1550:
2029:
1859:
1740:
1695:
1540:
1535:
1104:
685:
340:
1650:
1435:
247:
Patuxent's scientists have been responsible for advances in natural resource conservation, especially in such areas as
2143:
1720:
1410:
1212:
1147:
241:
2103:
2049:
2034:
1959:
1247:
1197:
1157:
743:
2118:
1919:
1405:
1400:
1302:
1257:
1252:
1172:
1167:
1127:
965:
422:
373:
pesticide tests were killing wildlife in tree canopies and causing significant fish kills in the
Patuxent River.
712:
1934:
1380:
1322:
1262:
1152:
1018:
995:
224:
216:
447:
1360:
2238:
2189:
1854:
1385:
1355:
1292:
1217:
1142:
2196:
1904:
1287:
1282:
1237:
1232:
1095:
1053:
1033:
950:
212:
483:
2074:
2064:
1390:
1370:
1187:
1112:
588:
376:
In 1996, three women were murdered near the
Patuxent Wildlife Research Center. One of the men involved,
356:
Almost all of the 8,100 acres (33 km) that make up what is now called the "North Tract" area (the
30:
2039:
1999:
1939:
1864:
1395:
1375:
1297:
1277:
1227:
1192:
960:
403:
280:
533:
2024:
1909:
1327:
1222:
1182:
1177:
1162:
2128:
1984:
1117:
272:
686:"U.S. Agency Assails Ft. Meade Plan: Impact Report Cites Concerns About Traffic and Environment"
2044:
2009:
1994:
1979:
1899:
1869:
1242:
1043:
256:
237:
2123:
1964:
1954:
1889:
1272:
1267:
1137:
307:
264:
208:
134:
383:
In 2017, the
Patuxent Wildlife Research Center ended its 51-year effort to breed and train
313:
1894:
1884:
1834:
1824:
985:
450:. Kearneysville, WV: United States Geological Survey (USGS). March 11, 2021. News release.
384:
288:
248:
306:. The Center's scientific and technical assistance publications, wildlife databases, and
16:
Wildlife research center located at the Patuxent Research Refuge, Maryland, United States
2014:
1989:
1969:
1929:
1829:
970:
357:
284:
251:, national monitoring programs for amphibians and birds, wildlife population analysis,
240:, and for providing technical assistance in implementing research findings to improve
2212:
124:
67:
2019:
1974:
1914:
1844:
1790:
912:
662:
377:
303:
1944:
1132:
592:
392:
268:
768:
461:
1819:
1760:
955:
778:
773:
579:
161:
148:
2059:
295:
252:
580:"D.D.T. Tests Harming Fish: Cause Heavy Mortality In Patuxent Refuge Area"
1839:
813:
318:
276:
227:
in the United States initially established to support wildlife research.
120:
98:
661:. Philadelphia, PA: U.S. Environmental Protection Agency. Archived from
387:
for release due to budget cuts. The flock of 75 birds were moved to the
325:
The center is a federal research facility that supports programs in the
1337:
260:
204:
628:"A 50-year effort to raise endangered whooping cranes comes to an end"
713:"Fort Meade to close golf course after more than six decades of play"
310:
are used nationally and worldwide in managing biological resources.
191:
339:
312:
561:"Marking History's Sentiment: Search Reveals Patuxent Graveyards"
782:
370:
211:, part of the Eastern Ecological Science Center (EESC) of the
540:. Prince George’s County, MD Conference & Visitors Bureau
2234:
Nature conservation organizations based in the United States
428:
List of parks in the Baltimore–Washington metropolitan area
608:"Trump administration executes its last death row inmate"
89:
58:
2139:
University of Maryland Arboretum & Botanical Garden
448:"Announcing the USGS Eastern Ecological Science Center"
344:
Patuxent National Wildlife Visitor Center entrance sign
2109:
Conservation and Environmental Research Areas of UMBC
464:. Laurel, MD: United States Fish and Wildlife Service
2249:
Protected areas of Prince George's County, Maryland
2224:
Biological research institutes in the United States
2157:
2096:
2087:
1812:
1803:
1749:
1424:
1346:
1103:
1094:
1067:
1032:
994:
939:
921:
903:
875:
852:
829:
820:
774:
YouTube video of the Patuxent Refuge grounds (2013)
298:and monitoring programs and is responsible for the
187:
177:
140:
130:
112:
23:
1082:Chesapeake Bay National Estuarine Research Reserve
913:Fort McHenry National Monument and Historic Shrine
711:
626:
578:
746:. Fort Meade Public Affairs Office. March 2, 2012
744:"Fort Meade's historic golf course set to close"
659:"Fort George G. Meade: Current Site Information"
2114:Merkle Wildlife Sanctuary and Visitor's Center
2055:Thomas A. Dixon Jr. Aircraft Observation Area
794:
484:"Patuxent Wildlife Research Center - Science"
8:
317:The research center hosts a wide variety of
2093:
1809:
1100:
826:
801:
787:
779:
509:"Patuxent Wildlife Research Center (PWRC)"
20:
559:Schumacher, Mary L. (November 27, 1997).
294:The Center develops and manages national
2183:Maryland Department of Natural Resources
327:United States Department of the Interior
439:
35:National Wildlife Visitor Center (FWS)
625:Bulliard, Karin (September 18, 2017).
503:
501:
639:from the original on December 5, 2022
606:Haynes, Danielle (January 16, 2021).
302:and the leadership of other national
7:
2149:Youghiogheny Scenic & Wild River
1786:Youghiogheny Scenic & Wild River
111:
2244:Protected areas established in 1936
1203:Harriet Tubman Underground Railroad
867:Harriet Tubman Underground Railroad
684:Vogel, Steve (September 22, 2007).
300:North American Bird Banding Program
724:from the original on June 25, 2021
14:
201:Patuxent Wildlife Research Center
24:Patuxent Wildlife Research Center
710:Brown, Matthew (March 1, 2012).
88:
81:
57:
50:
29:
2259:United States Geological Survey
2254:Research institutes in Maryland
2219:1936 establishments in Maryland
1077:Chesapeake Bay Gateways Network
369:In 1946, scientists found that
129:
769:USFWS Patuxent Research Refuge
538:Experience Prince George’s, MD
389:International Crane Foundation
380:, was executed for the crime.
221:U.S. Fish and Wildlife Service
1:
1049:Captain John Smith Chesapeake
72:Show map of the United States
981:Oxon Cove and Oxon Hill Farm
2144:Western Maryland Rail Trail
1601:Kent Island Research Center
242:natural resource management
37:10901 Scarlet Tanager Loop
2275:
2119:Mount Pleasant Farm Center
2104:Battle Creek Cypress Swamp
1621:Maryland Marine Properties
612:United Press International
462:"Patuxent Research Refuge"
2177:
996:National wildlife refuges
862:Chesapeake and Ohio Canal
854:National historical parks
423:Patuxent River State Park
44:
28:
1123:Bill Burton Fishing Pier
395:for continued breeding.
304:bird monitoring programs
225:National Wildlife Refuge
223:(FWS). This is the only
217:Patuxent Research Refuge
2190:Maryland Forest Service
877:National historic sites
1586:Islands of the Potomac
1138:Casselman River Bridge
345:
322:
265:flood plain management
213:U.S. Geological Survey
182:U.S. Geological Survey
117:Prince George's County
2229:Landmarks in Maryland
2197:Maryland Park Service
2097:Parks and sanctuaries
1813:Parks and sanctuaries
1616:Little Patuxent Oxbow
1069:Other protected areas
941:National Park Service
831:National battlefields
513:Landscape Partnership
343:
316:
162:39.02639°N 76.79889°W
1308:St. Clement's Island
1059:Star-Spangled Banner
665:on September 4, 2008
404:Fort George G. Meade
283:, and management of
281:ecosystem management
103:Show map of Maryland
2025:Prettyboy Reservoir
1950:Jefferson Patterson
1935:Gwynns Falls/Leakin
1751:Natural environment
1426:Wildlife management
1333:Washington Monument
690:The Washington Post
633:The Washington Post
565:The Washington Post
263:, coastal zone and
207:research center in
178:Governing body
167:39.02639; -76.79889
158: /
2134:Sugarloaf Mountain
2129:Somers Cove Marina
1711:South Marsh Island
1208:Hart-Miller Island
923:National seashores
905:National monuments
346:
323:
273:endangered species
2206:
2205:
2173:
2172:
2083:
2082:
1995:Liberty Reservoir
1980:Lake Kittamaqundi
1870:Cylburn Arboretum
1835:Benjamin Banneker
1799:
1798:
1546:Gravel Hill Swamp
1501:Devil Island Area
1090:
1089:
1036:and scenic trails
1034:National historic
1024:Susquehanna River
1019:Patuxent Research
951:Catoctin Mountain
931:Assateague Island
718:The Baltimore Sun
587:. June 25, 1946.
585:The Baltimore Sun
238:natural resources
219:, managed by the
197:
196:
131:Nearest city
2266:
2124:Sherwood Gardens
2094:
1960:Jug Bay Wetlands
1810:
1781:Soldiers Delight
1731:Warrior Mountain
1486:Cunningham Swamp
1313:St. Mary's River
1213:Herrington Manor
1148:Cunningham Falls
1101:
1054:Potomac Heritage
827:
803:
796:
789:
780:
756:
755:
753:
751:
740:
734:
733:
731:
729:
715:
707:
701:
700:
698:
696:
681:
675:
674:
672:
670:
655:
649:
648:
646:
644:
630:
622:
616:
615:
603:
597:
596:
582:
575:
569:
568:
556:
550:
549:
547:
545:
530:
524:
523:
521:
519:
505:
496:
495:
493:
491:
480:
474:
473:
471:
469:
458:
452:
451:
444:
308:electronic media
289:wildlife refuges
209:Laurel, Maryland
173:
172:
170:
169:
168:
163:
159:
156:
155:
154:
151:
135:Laurel, Maryland
104:
92:
91:
85:
73:
61:
60:
54:
39:Laurel, MD 20708
33:
21:
2274:
2273:
2269:
2268:
2267:
2265:
2264:
2263:
2209:
2208:
2207:
2202:
2169:
2153:
2089:
2079:
2040:Rockburn Branch
2005:Middle Patuxent
1940:Hagerstown City
1865:Cromwell Valley
1805:
1795:
1752:
1745:
1661:Nanticoke River
1561:Heater's Island
1427:
1420:
1342:
1248:Patapsco Valley
1198:Gunpowder Falls
1158:Deep Creek Lake
1086:
1063:
1035:
1028:
990:
961:Fort Washington
942:
935:
917:
899:
871:
848:
816:
810:Protected areas
807:
765:
760:
759:
749:
747:
742:
741:
737:
727:
725:
709:
708:
704:
694:
692:
683:
682:
678:
668:
666:
657:
656:
652:
642:
640:
624:
623:
619:
605:
604:
600:
577:
576:
572:
558:
557:
553:
543:
541:
532:
531:
527:
517:
515:
507:
506:
499:
489:
487:
482:
481:
477:
467:
465:
460:
459:
455:
446:
445:
441:
436:
419:
401:
385:whooping cranes
338:
249:migratory birds
233:
166:
164:
160:
157:
152:
149:
147:
145:
144:
108:
107:
106:
105:
102:
101:
95:
94:
93:
76:
75:
74:
71:
70:
64:
63:
62:
40:
17:
12:
11:
5:
2272:
2270:
2262:
2261:
2256:
2251:
2246:
2241:
2239:Patuxent River
2236:
2231:
2226:
2221:
2211:
2210:
2204:
2203:
2201:
2200:
2193:
2186:
2178:
2175:
2174:
2171:
2170:
2168:
2167:
2161:
2159:
2158:Nature centers
2155:
2154:
2152:
2151:
2146:
2141:
2136:
2131:
2126:
2121:
2116:
2111:
2106:
2100:
2098:
2091:
2085:
2084:
2081:
2080:
2078:
2077:
2072:
2067:
2062:
2057:
2052:
2050:Symphony Woods
2047:
2042:
2037:
2032:
2027:
2022:
2017:
2012:
2007:
2002:
1997:
1992:
1987:
1982:
1977:
1972:
1970:Lake Artemesia
1967:
1962:
1957:
1952:
1947:
1942:
1937:
1932:
1927:
1922:
1917:
1912:
1910:Fort Smallwood
1907:
1902:
1897:
1892:
1887:
1882:
1877:
1872:
1867:
1862:
1857:
1852:
1847:
1842:
1837:
1832:
1827:
1822:
1816:
1814:
1807:
1801:
1800:
1797:
1796:
1794:
1793:
1788:
1783:
1778:
1773:
1768:
1763:
1757:
1755:
1747:
1746:
1744:
1743:
1738:
1733:
1728:
1726:Taylors Island
1723:
1718:
1713:
1708:
1706:Sinepuxent Bay
1703:
1698:
1693:
1691:Ridenour Swamp
1688:
1686:Prather's Neck
1683:
1681:Pocomoke Sound
1678:
1676:Pocomoke River
1673:
1671:Parker's Creek
1668:
1663:
1658:
1656:Nanjemoy Creek
1653:
1648:
1643:
1638:
1633:
1628:
1623:
1618:
1613:
1608:
1603:
1598:
1593:
1588:
1583:
1581:Indian Springs
1578:
1573:
1568:
1566:Hopkins Branch
1563:
1558:
1553:
1548:
1543:
1538:
1533:
1528:
1523:
1518:
1513:
1508:
1503:
1498:
1493:
1491:Dan's Mountain
1488:
1483:
1478:
1473:
1468:
1463:
1458:
1453:
1448:
1443:
1438:
1432:
1430:
1422:
1421:
1419:
1418:
1413:
1408:
1403:
1398:
1393:
1388:
1383:
1378:
1373:
1368:
1363:
1358:
1352:
1350:
1344:
1343:
1341:
1340:
1335:
1330:
1325:
1320:
1315:
1310:
1305:
1303:South Mountain
1300:
1295:
1290:
1285:
1280:
1275:
1270:
1265:
1260:
1258:Pocomoke River
1255:
1253:Patuxent River
1250:
1245:
1240:
1235:
1230:
1225:
1220:
1215:
1210:
1205:
1200:
1195:
1190:
1185:
1180:
1175:
1173:Fort Tonoloway
1170:
1168:Fort Frederick
1165:
1160:
1155:
1150:
1145:
1140:
1135:
1130:
1128:Calvert Cliffs
1125:
1120:
1115:
1109:
1107:
1098:
1092:
1091:
1088:
1087:
1085:
1084:
1079:
1073:
1071:
1065:
1064:
1062:
1061:
1056:
1051:
1046:
1040:
1038:
1030:
1029:
1027:
1026:
1021:
1016:
1011:
1006:
1000:
998:
992:
991:
989:
988:
983:
978:
973:
968:
963:
958:
953:
947:
945:
937:
936:
934:
933:
927:
925:
919:
918:
916:
915:
909:
907:
901:
900:
898:
897:
892:
887:
881:
879:
873:
872:
870:
869:
864:
858:
856:
850:
849:
847:
846:
841:
835:
833:
824:
818:
817:
808:
806:
805:
798:
791:
783:
777:
776:
771:
764:
763:External links
761:
758:
757:
735:
702:
676:
650:
617:
598:
570:
551:
534:"Snowden Hall"
525:
497:
475:
453:
438:
437:
435:
432:
431:
430:
425:
418:
415:
400:
397:
358:Patuxent River
337:
334:
285:national parks
232:
229:
195:
194:
189:
185:
184:
179:
175:
174:
142:
138:
137:
132:
128:
127:
114:
110:
109:
96:
87:
86:
80:
79:
78:
77:
65:
56:
55:
49:
48:
47:
46:
45:
42:
41:
34:
26:
25:
15:
13:
10:
9:
6:
4:
3:
2:
2271:
2260:
2257:
2255:
2252:
2250:
2247:
2245:
2242:
2240:
2237:
2235:
2232:
2230:
2227:
2225:
2222:
2220:
2217:
2216:
2214:
2199:
2198:
2194:
2192:
2191:
2187:
2185:
2184:
2180:
2179:
2176:
2166:
2163:
2162:
2160:
2156:
2150:
2147:
2145:
2142:
2140:
2137:
2135:
2132:
2130:
2127:
2125:
2122:
2120:
2117:
2115:
2112:
2110:
2107:
2105:
2102:
2101:
2099:
2095:
2092:
2086:
2076:
2073:
2071:
2068:
2066:
2063:
2061:
2058:
2056:
2053:
2051:
2048:
2046:
2043:
2041:
2038:
2036:
2033:
2031:
2028:
2026:
2023:
2021:
2018:
2016:
2013:
2011:
2008:
2006:
2003:
2001:
1998:
1996:
1993:
1991:
1988:
1986:
1983:
1981:
1978:
1976:
1973:
1971:
1968:
1966:
1963:
1961:
1958:
1956:
1953:
1951:
1948:
1946:
1943:
1941:
1938:
1936:
1933:
1931:
1928:
1926:
1923:
1921:
1918:
1916:
1913:
1911:
1908:
1906:
1903:
1901:
1898:
1896:
1893:
1891:
1888:
1886:
1883:
1881:
1878:
1876:
1873:
1871:
1868:
1866:
1863:
1861:
1858:
1856:
1853:
1851:
1848:
1846:
1843:
1841:
1838:
1836:
1833:
1831:
1828:
1826:
1823:
1821:
1818:
1817:
1815:
1811:
1808:
1802:
1792:
1789:
1787:
1784:
1782:
1779:
1777:
1774:
1772:
1769:
1767:
1764:
1762:
1759:
1758:
1756:
1754:
1748:
1742:
1739:
1737:
1734:
1732:
1729:
1727:
1724:
1722:
1719:
1717:
1714:
1712:
1709:
1707:
1704:
1702:
1701:Sideling Hill
1699:
1697:
1694:
1692:
1689:
1687:
1684:
1682:
1679:
1677:
1674:
1672:
1669:
1667:
1664:
1662:
1659:
1657:
1654:
1652:
1649:
1647:
1644:
1642:
1639:
1637:
1634:
1632:
1631:McKee-Beshers
1629:
1627:
1624:
1622:
1619:
1617:
1614:
1612:
1609:
1607:
1604:
1602:
1599:
1597:
1594:
1592:
1591:Isle of Wight
1589:
1587:
1584:
1582:
1579:
1577:
1574:
1572:
1569:
1567:
1564:
1562:
1559:
1557:
1554:
1552:
1549:
1547:
1544:
1542:
1539:
1537:
1534:
1532:
1529:
1527:
1524:
1522:
1519:
1517:
1514:
1512:
1509:
1507:
1504:
1502:
1499:
1497:
1494:
1492:
1489:
1487:
1484:
1482:
1481:Chicone Creek
1479:
1477:
1474:
1472:
1469:
1467:
1464:
1462:
1459:
1457:
1454:
1452:
1451:Bodkin Island
1449:
1447:
1444:
1442:
1439:
1437:
1434:
1433:
1431:
1429:
1423:
1417:
1414:
1412:
1409:
1407:
1404:
1402:
1399:
1397:
1394:
1392:
1389:
1387:
1384:
1382:
1379:
1377:
1374:
1372:
1369:
1367:
1364:
1362:
1359:
1357:
1354:
1353:
1351:
1349:
1348:State forests
1345:
1339:
1336:
1334:
1331:
1329:
1326:
1324:
1323:Swallow Falls
1321:
1319:
1316:
1314:
1311:
1309:
1306:
1304:
1301:
1299:
1296:
1294:
1291:
1289:
1286:
1284:
1281:
1279:
1276:
1274:
1271:
1269:
1266:
1264:
1263:Point Lookout
1261:
1259:
1256:
1254:
1251:
1249:
1246:
1244:
1241:
1239:
1236:
1234:
1231:
1229:
1226:
1224:
1221:
1219:
1216:
1214:
1211:
1209:
1206:
1204:
1201:
1199:
1196:
1194:
1191:
1189:
1186:
1184:
1181:
1179:
1176:
1174:
1171:
1169:
1166:
1164:
1161:
1159:
1156:
1154:
1153:Dans Mountain
1151:
1149:
1146:
1144:
1141:
1139:
1136:
1134:
1131:
1129:
1126:
1124:
1121:
1119:
1116:
1114:
1111:
1110:
1108:
1106:
1102:
1099:
1097:
1093:
1083:
1080:
1078:
1075:
1074:
1072:
1070:
1066:
1060:
1057:
1055:
1052:
1050:
1047:
1045:
1042:
1041:
1039:
1037:
1031:
1025:
1022:
1020:
1017:
1015:
1012:
1010:
1007:
1005:
1002:
1001:
999:
997:
993:
987:
984:
982:
979:
977:
974:
972:
969:
967:
964:
962:
959:
957:
954:
952:
949:
948:
946:
944:
938:
932:
929:
928:
926:
924:
920:
914:
911:
910:
908:
906:
902:
896:
893:
891:
888:
886:
883:
882:
880:
878:
874:
868:
865:
863:
860:
859:
857:
855:
851:
845:
842:
840:
837:
836:
834:
832:
828:
825:
823:
819:
815:
811:
804:
799:
797:
792:
790:
785:
784:
781:
775:
772:
770:
767:
766:
762:
745:
739:
736:
723:
719:
714:
706:
703:
691:
687:
680:
677:
664:
660:
654:
651:
638:
634:
629:
621:
618:
613:
609:
602:
599:
594:
590:
586:
581:
574:
571:
566:
562:
555:
552:
539:
535:
529:
526:
514:
510:
504:
502:
498:
485:
479:
476:
463:
457:
454:
449:
443:
440:
433:
429:
426:
424:
421:
420:
416:
414:
411:
407:
405:
398:
396:
394:
390:
386:
381:
379:
374:
372:
367:
364:
359:
354:
352:
342:
335:
333:
330:
328:
320:
315:
311:
309:
305:
301:
297:
292:
290:
287:and national
286:
282:
278:
274:
270:
266:
262:
258:
254:
250:
245:
243:
239:
230:
228:
226:
222:
218:
214:
210:
206:
202:
193:
192:EESC/Patuxent
190:
186:
183:
180:
176:
171:
143:
139:
136:
133:
126:
125:United States
122:
118:
115:
100:
84:
69:
68:United States
53:
43:
38:
32:
27:
22:
19:
2195:
2188:
2181:
2090:governmental
2030:Quiet Waters
2010:Oregon Ridge
1975:Lake Elkhorn
1900:Federal Hill
1860:Constitution
1791:Zekiah Swamp
1646:Myrtle Grove
1626:McIntosh Run
1461:Cedar Island
1401:Savage River
1293:Seneca Creek
1218:Janes Island
1143:Chapel Point
1014:Glenn Martin
1009:Eastern Neck
976:Harmony Hall
895:Thomas Stone
885:Clara Barton
748:. Retrieved
738:
726:. Retrieved
717:
705:
693:. Retrieved
689:
679:
667:. Retrieved
663:the original
653:
641:. Retrieved
632:
620:
611:
601:
584:
573:
564:
554:
544:December 13,
542:. Retrieved
537:
528:
518:December 13,
516:. Retrieved
512:
488:. Retrieved
478:
466:. Retrieved
456:
442:
412:
408:
402:
382:
378:Dustin Higgs
375:
368:
355:
351:Snowden Hall
347:
331:
324:
293:
269:contaminants
259:management,
246:
234:
200:
198:
36:
18:
2045:Sligo Creek
1985:Lake Roland
1965:Kinder Farm
1955:Jonas Green
1945:Herring Run
1890:Fairgrounds
1875:David Force
1666:Old Bohemia
1571:Hugg-Thomas
1531:Fishing Bay
1511:E.A. Vaughn
1496:Deal Island
1466:Cedar Point
1441:Belle Grove
1381:Green Ridge
1318:Susquehanna
1288:Sandy Point
1283:Rosaryville
1238:North Point
1233:New Germany
1133:Canal Place
1105:State parks
1044:Appalachian
695:January 23,
669:January 24,
393:Calgary Zoo
165: /
141:Coordinates
66:Map of the
2213:Categories
2070:Wilde Lake
2000:Loch Raven
1920:Gene Mason
1905:Flag Ponds
1895:Falls Road
1885:Druid Hill
1850:Centennial
1825:Allen Pond
1804:County and
1776:Severn Run
1771:Morgan Run
1766:Mattawoman
1761:Belt Woods
1736:Wellington
1636:Millington
1556:Gwynnbrook
1551:Grove Farm
1516:Earleville
1476:Chicamuxen
1471:Cheltenham
1386:Mount Nebo
1361:Chesapeake
1356:Cedarville
1188:Greenbrier
1113:Assateague
1004:Blackwater
986:Piscataway
956:Fort Foote
643:October 1,
434:References
399:Fort Meade
363:old Duvall
205:biological
153:76°47′56″W
150:39°01′35″N
2035:Riverside
2015:Patterson
1990:Lakelands
1930:Gwynn Oak
1806:municipal
1741:Wetipquin
1696:Riverside
1606:Le Compte
1541:Globe Com
1536:Fort Hill
1526:Fairmount
1521:Ellis Bay
1446:Billmeyer
1366:Doncaster
1298:Smallwood
1278:Rocky Gap
1228:Matapeake
1193:Greenwell
971:Greenbelt
966:Glen Echo
593:542839907
296:inventory
255:harvest,
253:waterfowl
1925:Generals
1880:Dinosaur
1840:Blandair
1651:Nanjemoy
1641:Mt. Nebo
1611:Linkwood
1576:Idylwild
1506:Dierssen
1436:Avondale
1416:Wicomico
1391:Pocomoke
1371:Elk Neck
1328:Tuckahoe
1223:Martinak
1183:Gathland
1178:Gambrill
1163:Elk Neck
844:Monocacy
839:Antietam
814:Maryland
722:Archived
637:Archived
589:ProQuest
490:June 25,
468:June 25,
417:See also
391:and the
319:wildlife
277:wildlife
275:, urban
261:wetlands
121:Maryland
113:Location
99:Maryland
2065:Wheaton
2020:Pen Mar
1915:Foxhill
1855:Clifton
1845:Carroll
1830:Belmont
1721:Tar Bay
1716:Strider
1596:Johnson
1396:Potomac
1376:Garrett
1338:Wye Oak
1118:Big Run
890:Hampton
822:Federal
750:June 7,
728:June 7,
336:History
257:habitat
231:Mission
188:Website
97:Map of
1411:Stoney
1243:Palmer
591:
486:. USGS
2075:Wyman
1820:Acorn
1753:areas
1456:Bowen
1428:areas
1273:Rocks
1268:Purse
1096:State
943:parks
203:is a
2165:List
2088:Non-
2060:Troy
1406:Seth
752:2022
730:2022
697:2008
671:2008
645:2017
546:2022
520:2022
492:2024
470:2024
199:The
812:of
371:DDT
2215::
720:.
716:.
688:.
635:.
631:.
610:.
583:.
563:.
536:.
511:.
500:^
291:.
279:,
271:,
267:,
244:.
123:,
119:,
802:e
795:t
788:v
754:.
732:.
699:.
673:.
647:.
614:.
595:.
567:.
548:.
522:.
494:.
472:.
321:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
