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Green Ridge State Forest, Fifteen Mile Creek Road, outcrops along Fifteen Mile Creek near Big Divide Ridge, Ridge and Valley

Potomac River, C&O Canal, Dam 4 north

River Road shale barrens

about 0.4 mi SSE of Howell Point, Big Marsh

Tuckahoe State Park, Adkins Arboretum, meadows along trails through old fields

Pocomoke State Forest, S of Old Furnace Road, 1.2 km SSW of Furnace on dirt logging road, large greater than 23 acre inland sand dune (PSF-36), Coastal Plain

Lower Nassawango Creek Natural Heritage Area, NHA-30, S of Red House Road, upper stretch of river

Elk Neck State Forest, Piedmont

Town Creek, south of Pumpkin Center, Ridge and Valley

Fair Hill Natural Resources Managemnt Area, S of the nature center

Pocomoke State Forest, Old Beech Road, sand dune PSF37, along access road

campus of St. Mary's College of Maryland, old fields at the junction of Mattapany Road and Campus Drive, Outer Coastal Plain

The Nature Conservancy Ewing Preserve, Robinson Neck

Idylwild Wildlife Management Area, Houston Branch Road, access road through pastures and old farm fields paralleling Houston Branch, Coastal Plain

River Road near Mount Nebo Road, Piedmont

Chapman State Park (Chapman Forest North) above the Potomac River about 1.0 km NE of the old Glymont Landing

bank of Pocomoke River, Atlantic Coastal Plain, Eastern Shore

Green Ridge State Forest, Big Divide Shale Barren, Ridge and Valley

Potomac River, Little Falls; 38.943598 -77.112796

Green Ridge State Forest at Headquarters building in vicinity of overlook, Ridge and Valley

Charlestown Crossing, S of Route 40 and approximately 0.3 mi E of Cool Springs

woods along powerline approaching Plum Creek Bog, Coastal Plain

Idylwild Wildlife Management Area off Houston Branch Road, Coastal Plain

Martinak State Park, woods adjacent to parking lot above boatramp on Watts Creek, Coastal Plain

Potomac River, Great Falls, Olmstead Island, Piedmont

Potomac River, Little Falls

Flintstone Creek, section accessible from Black Valley Road

Rockville, Piedmont

Funk's Pond Recreation Area, N of Conowingo Dam and Route 1, trail to Funk's Pond

Robinson Neck, The Nature Conservancy, Ewing Preserve, end of trail adjacent to marsh

Fort Hill, south end, Ridge and Valley

Stockton Powerline, Coastal Plain

Sideling Hill Creek, 1 mi N of ford (this may be the ford at Norris Road), Ridge and Valley

Wango, from Salisbury Municipal Airport, take Airport Road S to intersection of Fooks Road, follow Fooks Road approximately 3.0 mi to a three-way intersection and sandy parking area, park and walk SW under powerline right-of-way, depression about 1500 fee

Bell Hill Shale Barren, Ridge and Valley

Susquehanna State Park, field along Susquehanna River

Idylwild Wildlife Management Area, Marshyhope Ponds section, near sand pit (mine), Coastal Plain

Route 546 at Old Route 40 and I-68, roadside, Allegheny Plateau

Cherry Lane, roadsides, Coastal Plain

Sharptown Bog, under powerline

Sharptown Bog, about 1.2 mi due S of Sharptown and 0.4 mi S of San Domingo, small powerline right-of-way

5.6 miles SSE of Lexington Park, Elms Cooperative Wildlife Management Area, Bay Forest Road, approximately 0.6 miles E of intersections with Route 235, Inner Coastal Plain

Grantsville, Casselman River State Park, steep shaly slope and floodplain, Alleghany Plateau

Grantsville, Casselman River State Park, steep shaly slope and floodplain

Fort Washington Park, wooded slope and ravine NE of lighthouse, Coastal Plain

Potomac River at Pearre, W of Lock 55, Blue Ridge

Green Ridge State Forest, Town Creek, second ford on Maniford Road traveling W from Green Ridge Road, Ridge and Valley

Green Ridge State Forest, Town Creek, downstream from ford on Maniford Road, Ridge and Valley

Fort Washington Park, 1500 feet NE of Fort Washington Light, Coastal Plain

South Savage River Wildland, Allegheny Plateau