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Species
1 C&O Canal--Violette's Lock
269
2 Hughes Hollow - McKee Beshers WMA
247
3 C&O Canal--Pennyfield Lock
223
4 C&O Canal--Riley's Lock
221
5 Blue Mash Nature Trail
219
6 C&O Canal--Sycamore Landing
210
7 Black Hill Regional Park
205
8 Triadelphia Reservoir--Greenbridge Rd.
192
9 Lake Needwood
191
10 Triadelphia Reservoir--Brighton Dam (Montgomery County)
186
11 C&O Canal--Great Falls
176
12 Triadelphia Reservoir--Triadelphia Lake Rd.
174
13 Black Hill RP--Boat Ramp area
173
14 Black Hill RP--Little Seneca Lake, Rte.121
173
15 Wheaton Regional Park--mini-train tracks/Pine Lake
173
16 Wheaton Regional Park
172
17 Little Bennett Regional Park
170
18 Lake Frank
168
19 Meadowside Nature Center
168
20 C&O Canal--Edwards Ferry
167
21 C&O Canal--Swains Lock
167
22 Carderock Recreation Area
166
23 Lois Y. Green Conservation Park
166
24 Patton Turf Farm
166
25 Upper Watts Branch Park
163
26 Wheaton Branch Stormwater Ponds
162
27 Blockhouse Point Conservation Park
161
28 Layhill Park
161
29 Lake Needwood - north end
159
30 Black Hill RP--Ten Mile Creek area, trails and lake
158
31 Hughes Rd. polo fields
157
32 Summit Hall Turf Farm (private)
157
33 Gunners Lake
151
34 Seneca Creek State Park
151
35 Cabin John Regional Park
150
36 Oaks Landfill (private)
150
37 C&O Canal--Mouth of the Monocacy (Mont. Co.)
148
38 C&O Canal--White's Ferry
148
39 South Germantown Recreational Park
147
40 Ken-Gar Palisades Park
146
41 Rickman/Woodstock Equestrian Park
146
42 Sycamore Landing Rd. fields
145
43 Brookside Gardens
143
44 Little Bennett RP--Wilson Mill Trail
142
45 Green Hills Farm Wetland
141
46 Seneca Creek SP--Clopper Lake
141
47 Meadowbrook Park (Montgomery Co.)
140
48 Rachel Carson Conservation Park
139
49 C&O Canal--Old Angler's Inn - Billy Goat Trail Section B
138
50 C&O Canal--Lock 8
137
51 Little Bennett RP--Kingsley Trail
136
52 C&O Canal--Old Anglers Inn - Bear Island
134
53 C&O Canal--Little Falls
133
54 Lake Churchill, Germantown
133
55 BCC-IWLA (private)
132
56 Aspen Hill
130
57 Darnestown Rd. ponds
130
58 Crabbs Branch Pond
129
59 Dickerson Conservation Park
128
60 LM Stevens Park
128
61 Black Hill RP--Crystal Rock Trail
124
62 Watkins Ponds - King Farm Stream Park
124
63 Agricultural History Farm Park
123
64 Audubon Naturalist Society - Woodend Sanctuary
122
65 Greenway Trail--Huntmaster Rd to Brink Rd (Incl. Goshen Park)
121
66 Sligo Creek Park--Dennis Ave. to Wayne Ave.
119
67 Little Falls Branch Stream Valley Park
118
68 Little Falls Parkway, Bethesda
118
69 Croydon Creek Nature Center, Rockville
117
70 Brookside Nature Center
114
71 Evans Parkway Park
114
72 C&O Canal--Lock 7
113
73 Little Bennett RP--Western Piedmont Trail
111
74 Northwest Branch Trail--Burnt Mills
110
75 Serpentine Barrens Conservation Park
110
76 Northwest Branch Trail
108
77 Cabin John RP--Locust Grove Nature Center
107
78 Brewer House Rd. Pond
106
79 Rock Creek Park--Chevy Chase
106
80 Washington Grove Forest Preserve
106
81 Dry Seneca Creek Park
102
82 NIH campus (restricted access; photo i.d. needed)
101
83 C&O Canal--Locks 10-12
100
84 Patuxent River SP--Hipsley Mill Rd. (Montgomery Co.)
100
85 C&O Canal--Brickyard Rd. - Marsden Tract
99
86 NIH Animal Center (private)
99
87 Sligo Creek Park--north end to Dennis Ave.
99
88 Patuxent River SP--Rte. 97 (Montgomery Co.)
98
89 Tucker Lane, Ashton
97
90 MLK Rec. Park
96
91 Rocky Gorge Reservoir--Browns Bridge (Montgomery County)
96
92 Sligo Creek Park--Wayne Ave. to south end
96
93 Hoyles Mill Conservation Park
95
94 Long Branch Trail--Carroll Ave.- Piney Branch Rd.
93
95 Seneca Creek SP--Riffle Ford Rd.
93
96 Lower Cabin John Creek
92
97 Fairland Recreational Park
91
98 Woottons Mill Park
91
99 C&O Canal--Blockhouse Point
88
100 Capital Crescent Trail at Rock Creek Trail
86