Year :
All Years
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1987
1986
1985
1984
1981
1980
1979
1978
1974
1971
Quadrangle :
All Quadrangles
1. Conowingo Dam, Md.-Pa.
2. Aberdeen, Md.
3. Havre de Grace, Md.
4. North East, Md.
5. Elkton, Md.-Del.
6. White Marsh, Md.
7. Edgewood, Md.
8. Perryman, Md.
9. Spesutie, Md.
10. Earleville, Md.
11. Cecilton, Md.
12. Baltimore East, Md.
13. Middle River, Md.
14. Gunpowder Neck, Md.
15. Hanesville, Md.
16. Betterton, Md.
17. Galena, Md.
18. Curtis Bay, Md.
19. Sparrows Point, Md.
20. Swan Point, Md.
21. Rock Hall, Md.
22. Chestertown, Md.
23. Round Bay, Md.
24. Gibson Island, Md.
25. Love Point, Md.
26. Langford Creek, Md.
27. Centreville, Md.
28. Washington West, Md.- D.C.- Va
29. Washington East, D.C.- Md.
30. South River, Md.
31. Annapolis, Md.
32. Kent Island, Md.
33. Queenstown, Md.
34. Alexandria, Va.- D.C.- Md.
35. Deale, Md.
36. Claiborne, Md.
37. St. Michaels, Md.
38. Easton, Md.
39. Fort Belvoir, Va.- Md.
40. Mt. Vernon, Md.- Va.
41. Lower Marlboro, Md.
42. North Beach, Md.
43. Tilghman, Md.
44. Oxford, Md.
45. Trappe, Md.
46. Preston, Md.
47. Quantico, Va.- Md.
48. Indian Head, Va.- Md.
49. Benedict, Md.
50. Prince Frederick, Md.
51. Hudson, Md.
52. Church Creek, Md.
53. Cambridge, Md.
54. East New Market, Md.
55. Widewater, Va.- Md.
56. Nanjemoy, Md.
57. Mathias Point, Md.- Va.
58. Popes Creek, Md.
59. Mechanicsville, Md.
60. Broomes Island, Md.
61. Cove Point, Md.
62. Taylors Island, Md.
63. Golden Hill, Md.
64. Passapatanzy, Md.- Va.
65. King George, Va.- Md.
66. Dahlgren, Va.- Md.
67. Colonial Beach North, Md.- Va.
68. Rock Point, Md.
69. Leonardtown, Md.
70. Hollywood, Md.
71. Solomons Island, Md.
72. Barren Island, Md.
73. Honga, Md.
74. Wingate, Md.
75. Nanticoke, Md.
76. Colonial Beach South, Va.- Md.
77. Stratford Hall, Va.- Md.
78. St. Clements Island, Va.- Md.
79. Piney Point, Md.- Va.
80. St. Marys City, Md.
81. Point No Point, Md.
82. Richland Point, Md.
83. Bloodsworth Island, Md.
84. Deal Island, Md.
85. Monie, Md.
86. Champlain, Va.
87. Machodoc, Va.
88. Kinsale, Va.- Md.
89. St. George Island, Va.- Md.
90. Point Lookout, Md.
91. Kedges Straits, Md.
92. Terrapin Sand Point, Md.
93. Marion, Md.
94. Mount Landing, Va.
95. Tappahannock, Va.
96. Lottsburg, Va.
97. Heathsville, Va.- Md.
98. Burgess, Va.- Md.
99. Ewell, Md.- Va.
100. Great Fox Island, Va.- Md.
101. Crisfield, Md.- Va.
102. Saxis, Va.- Md.
103. Dunnsville, Va.
104. Morattico, Va.
105. Lively, Va.
106. Reedville, Va.
107. Tangier Island, Va.
108. Chesconessex, Va.
109. Parksley, Va.
110. Urbanna, Va.
111. Irvington, Va.
112. Fleets Bay, Va.
113. Nandua Creek, Va.
114. Pungoteague, Va.
115. West Point, Va.
116. Saluda, Va.
117. Wilton, Va.
118. Deltaville, Va.
119. Jamesville, Va.
120. Toano, Va.
121. Gressitt, Va.
122. Ware Neck, Va.
123. Mathews, Va.
124. Franktown, Va.
125. Westover, Va.
126. Charles City, Va.
127. Brandon, Va.
128. Norge, Va.
129. Williamsburg, Va.
130. Clay Bank, Va.
131. Achilles, Va.
132. New Point Comfort, Va.
133. Cape Charles, Va.
134. Cheriton, Va.
135. Savedge, Va.
136. Claremont, Va.
137. Surry, Va.
138. Hog Island, Va.
139. Yorktown, Va.
140. Poquoson West, Va.
141. Poquoson East, Va.
142. Elliotts Creek, Va.
143. Townsend, Va.
144. Bacons Castle, Va.
145. Mulberry Island, Va.
146. Newport News North, Va.
147. Hampton, Va.
148. Benns Church, Va.
149. Newport News South, Va.
150. Norfolk North, Va.
151. Little Creek, Va.
152. Cape Henry, Va.
153. Chuckatuck, Va.
154. Bowers Hill, Va.
155. Norfolk South, Va.
156. Kempsville, Va.
157. Princess Anne, Va.
158. Wye Mills, Md.
159. Bristol, Md.
160. Fowling Creek, Md.
161. Port Tobacco, Md.
162. Charlotte Hall, Md.
163. Mardela Springs, Md.
164. Wetipquin, Md.
165. Selbyville, Md.
166. Assawoman Bay, Md.- Del.
167. Berlin, Md.
168. Ocean City, Md.
169. Public Landing, Md.
170. Tingles Island, Md.
171. Girdle Tree, Md.- Va.
172. Boxiron, Md.- Va.
173. Whittington Point, Md.- Va.
174. Chincoteague West, Va.
175. Chincoteague East, Va.
176. Anacostia, D.C.- Md.
177. East of New Point Comfort, Va.
178. Bethel Beach, Va.
179. Goose Island, Va.
180. Horseshoe Point, Md.
181. Bowie, Md.
182. Smith Point, Va. - Md.
183. East of Reedville, Va.
184. Cobb Island, Va.
185. Suffolk, Va.
186. Fishermans Island, Va.
187. Exmore, Va.
188. Kingston, Md.
189. Eden, Md.
190. Rhodesdale, Md.
191. Sharptown, Md.- Del.
192. Hobbs, Md.
193. Church Hill, Md.
194. Lancaster, Va.
195. Gloucester, Va.
196. Princess Anne, Md.
197. Haynesville, Va.
198. Hallwood, Va. - Md.
199. Millington, Md.
200. Rollins Fork, Va.
201. Loretto, Va.
202. Pocomoke City, Md. - Va.
203. Diputanta North, Va.
204. Hopewell, Va.
205. Chester, Va.
206. Drewrys Bluff, Va.
207. Dutch Gap, Va.
208. Roxbury, Va.
209. Providence Forge, Va.
210. Walkers, Va.
211. Richmond, Va.
212. Ship Shoal Inlet, Va.
213. Great Machipongo Inlet, Va.
214. Nassawadox, Va.
215. Quinbly Inlet, Va.
216. Wachapreague, Va.
217. Accomac, Va.
218. Metompkin Inlet, Va.
219. Bloxom, Va.
220. Wallops Island, Va.
221. Deep Creek, Va.
222. Fentress, Va.
223. Pleasant Ridge, Va.
224. Creeds, Va.
225. King William, Va.
226. King & Queen Courthouse, Va.
227. Truhart, Va.
228. Tunstall, Va.
229. New Kent, Va.
230. Manquin, Va.
231. Port Royal, Va.
232. Wachapreague East, Va.
233. Aylett, Va.
234. Snow Hill, Md.
235. Montross, Va.
236. Saint Georges, Del.
237. Sudlersville, Md. - Del.
238. Falls Church, Va. - Md.
239. Ridgely, Md.
240. Denton, Md.
241. Piscataway, Md.
242. Occoquan, Va.
243. Seaford East, Del.
244. Laurel, Del.
245. Stafford, Va.
246. Blackwater River, Md.
247. Chicamacomico River, Md.
248. Fredericksburg, Va.
249. Salisbury, Md.
250. Guinea, Va.
251. Rappahannock Academy, Va.
252. Chincoteague East OE S, Va.
253. Church View, Va.
254. Quinton, Va.
255. Shacklefords, Va.
256. Petersburg, Va.
257. Smithfield, Va.
258. Virginia Beach, Va.
259. Relay, Md.
Segment :
All Segments
CB1TF1 - Northern Chesapeake Bay Segment 1
CB1TF2 - Northern Chesapeake Bay Segment 2
NORTF - Northeast River
ELKOH1 - Elk River Segment 1
ELKOH2 - Elk River Segment 2
BOHOH - Bohemia River
C&DOH - Chesapeake & Delaware Canal
CB2OH - Upper Chesapeake Bay
SASOH1 - Sassafras River Segment 1
SASOH2 - Sassafras River Segment 2
BSHOH - Bush River
GUNOH1 - Gunpowder River Segment 1
GUNOH2 - Gunpowder River Segment 2
MIDOH - Middle River
BACOH - Back River
CB3MH - Upper Central Chesapeake Bay
PATMH - Patapsco River
MAGMH - Magothy River
CHSMH - Lower Chester River
CHSOH - Middle Chester River
CHSTF - Upper Chester River
CB4MH - Middle Central Chesapeake Bay
EASMH - Eastern Bay
CHOMH1 - Mouth of the Choptank River
CHOMH2 - Lower Choptank River
CHOOH - Middle Choptank River
CHOTF - Upper Choptank River
LCHMH - Little Choptank River
SEVMH - Severn River
SOUMH - South River
RHDMH - Rhode River
WSTMH - West River
CB5MH - Lower Central Chesapeake Bay
HNGMH - Honga River
FSBMH - Fishing Bay
NANMH - Lower Nanticoke River
NANOH - Middle Nanticoke River
NANTF - Upper Nanticoke River
WICMH - Wicomico River
TANMH1 - Tangier Sound Segment 1
TANMH2 - Tangier Sound Segment 2
MANMH1 - Manokin River Segment 1
MANMH2 - Manokin River Segment 2
BIGMH1 - Big Annemessex River Segment 1
BIGMH2 - Big Annemessex River Segment 2
POCMH - Lower Pocomoke River
POCOH - Middle Pocomoke River
POCTF - Upper Pocomoke River
PAXMH1 - Lower Patuxent River Segment 1
PAXMH2 - Lower Patuxent River Segment 2
PAXMH3 - Lower Patuxent River Segment 3
PAXMH4 - Lower Patuxent River Segment 4
PAXMH5 - Lower Patuxent River Segment 5
PAXMH6 - Lower Patuxent River Segment 6
PAXOH - Middle Patuxent River
PAXTF - Upper Patuxent River
WBRTF - Western Branch of the Patuxent River
POTMH - Lower Potomac River
POTOH1 - Middle Potomac River Segment 1
POTOH2 - Middle Potomac River Segment 2
POTOH3 - Middle Potomac River Segment 3
POTTF - Upper Potomac River
MATTF - Mattawoman Creek
PISTF - Piscataway Creek
ANATF - Anacostia River
CB6PH - Western Lower Chesapeake Bay
CB7PH - Eastern Lower Chesapeake Bay
RPPMH - Lower Rappahannock River
CRRMH - Corrotoman River
RPPOH - Middle Rappahannock River
RPPTF - Upper Rappahannock River
PIAMH - Piankatank River
MOBPH - Mobjack Bay
YRKPH - Lower York River
YRKMH - Middle York River
MPNOH - Lower Mattaponi River
MPNTF - Upper Mattaponi River
PMKOH - Lower Pamunkey River
PMKTF - Upper Pamunkey River
JMSPH - Mouth of the James River
JMSMH - Lower James River
ELIPH - Lower Elizabeth River
WBEMH - Western Branch of the Elizabeth River
SBEMH - South Branch of the Elizabeth River
EBEMH - Eastern Branch of the Elizabeth River
LAFMH - Lafayette River
CHKOH - Chickahominy River
JMSOH - Middle James River
JMSTF1 - Upper James River Segment 1
JMSTF2 - Upper James River Segment 2
APPTF - Appomattox River
CB8PH - Mouth of the Chesapeake Bay
LYNPH - Lynnhaven & Broad Bays
AAWPH - Assawoman Bay
IOWPH - Isle of Wight Bay
SPXPH - Sinepuxent Bay
CHNPH - Chincoteague Bay
SVCPH1 - Burtons Bay
SVCPH2 - Hog Island Bay
SVCPH3 - Spidercrab Bay
SVCPH4 - Cobb Bay
SVCPH5 - South Bay
SVCPH6 - Magothy Bay
Species :
All Species
Zm - Zostera marina
Rm - Ruppia maritima
C - Chara
Cd - Ceratophyllum demersum
Cl - Callitriche
Ec - Elodea canadensis
E - Elodea
En - Elodea nuttallii
Ed - Egeria densa
Hd - Heteranthera dubia
Hv - Hydrilla verticillata
Ma - Myriophyllum aquaticum
Ms - Myriophyllum spicatum
M - Milfoil
N - Najas
Nfl - Najas flexilis
Ngr - Najas gracillima
Ngu - Najas guadalupensis
Nm - Najas minor
Nt - Nitella
Pcr - Potamogeton crispus
P - Potamogeton
Pe - Potamogeton epihydrus
Pn - Potamogeton nodosus
Ppc - Stuckenia pectinata
Ppf - Potamogeton perfoliatus
Ppu - Potamogeton pusillus
S - Sparganium
Tn - Trapa natans
Va - Vallisneria americana
Zp - Zannichellia palustris
Quadrangle
Location
Species
Affiliation
Date
Segment
3
Susquehanna Flats
Va,Hd,Hv
MD-DNR
9/4/2024
CB1TF2
3
Susquehanna Flats
Va,Hd,Hv,Cd,M
MD-DNR
9/4/2024
CB1TF2
3
Havre de Grace
Va,Cd,Hv
Citizen
7/23/2024
CB1TF2
3
off of a floating pier barely downstream
Va,Hd,Hv,Nm,N
HdGMMEC
9/4/2024
CB1TF2
3
<Null>
Ms,Va,Hv,Cd
HdGMMEC
9/11/2024
CB1TF2
3
<Null>
Hv,Va,Cd
HdGMMEC
9/11/2024
CB1TF2
3
<Null>
Ms,Cd,Va,Hv
HdGMMEC
9/11/2024
CB1TF2
3
<Null>
Va,Ms,Hv,Cd
HdGMMEC
9/11/2024
CB1TF2
3
<Null>
Hv,Va,Cd
HdGMMEC
9/11/2024
CB1TF2
6
Days cove area, flat brackish water
Va,Hv
Citizen
8/29/2024
GUNOH2
6
Days Cove Area, wide flat, brackish wate
Hv,Ms,Cd
Citizen
8/29/2024
GUNOH2
6
Gunpowder River, Bird River
Cd
BCDEPRM
6/10/2024
GUNOH2
6
Gunpowder River, Bird River
Cd
BCDEPRM
6/10/2024
GUNOH2
6
Gunpowder River, Bird River
Cd,Hv
BCDEPRM
6/10/2024
GUNOH2
6
Gunpowder River, Bird River
Hv
BCDEPRM
9/3/2024
GUNOH2
6
Bird River, Railroad Creek
Cd
BCDEPRM
6/10/2024
GUNOH2
6
Gunpowder River, Bird River
Cd,Hv,Nm
BCDEPRM
6/10/2024
GUNOH2
6
Gunpowder River, Bird River
Cd,Nm
BCDEPRM
9/3/2024
GUNOH2
6
Gunpowder River, Bird River
Hv
BCDEPRM
9/3/2024
GUNOH2
6
Gunpowder River, Bird River
Hv
BCDEPRM
6/10/2024
GUNOH2
6
Gunpowder River, Bird River
Hv
BCDEPRM
6/10/2024
GUNOH2
6
Gunpowder River, Bird River
Cd,Nm
BCDEPRM
6/10/2024
GUNOH2
1
2
3
4
5
6
7
8
9
10
...