Alan Cressler:
Aetna Mountain Off Road Vehicle Area, Aetna Mountain, Peanut Butter Hole, Marion County, Tennessee 1
Alan Cressler:
Amaranthus palmeri, infested soybean (Glycine max) field, near Shellman, Randolph County, Georgia 1
Alan Cressler:
Amaranthus palmeri, infested soybean (Glycine max) field, near Shellman, Randolph County, Georgia 2
Alan Cressler:
Amaranthus palmeri, infested soybean field, near Shellman, Randolph County, Georgia 3
Alan Cressler:
America the Beautiful, Gulf of Mexico, Sea Rim Beach, Sea Rim State Park, Jefferson County, Texas 1
Alan Cressler:
America the Beautiful, Gulf of Mexico, Sea Rim Beach, Sea Rim State Park, Jefferson County, Texas 2
Alan Cressler:
America the Beautiful, Gulf of Mexico, Sea Rim Beach, Sea Rim State Park, Jefferson County, Texas 3
Alan Cressler:
America the Beautiful, Gulf of Mexico, Sea Rim Beach, Sea Rim State Park, Jefferson County, Texas 4
Alan Cressler:
America the Beautiful, South Fork Peachtree Creek, Hahn Woods, Emory, Dekalb County, Georgia 1
Alan Cressler:
America the Beautiful, South River, Everett Park, Albert Shoals, DeKalb County, Georgia 1
Alan Cressler:
America the Beautiful, South River, Everett Park, Albert Shoals, DeKalb and Rockdale Counties, Georgia 1
Alan Cressler:
America the Beautiful, rack line of disposables, Yellow River, at Annistown Road, Gwinnett County, Georgia 1
Alan Cressler:
Bridge to Nowhere, Atlanta, Fulton County, Georgia 1
Alan Cressler:
Bridge to Nowhere, Atlanta, Fulton County, Georgia 2
Alan Cressler:
Chattahoochee River, and sediment covered boat ramp after a 21,200 cubic feet per second (CFS) flood, County Park, Coweta County, Georgia 1
Alan Cressler:
Coffey Quarry, Mile Rock, Davidson-Arabia Mountain Nature Preserve, DeKalb County, Georgia 1
Alan Cressler:
Coffey Quarry, Mile Rock, Davidson-Arabia Mountain Nature Preserve, DeKalb County, Georgia 2
Alan Cressler:
Coffey Quarry, Mile Rock, Davidson-Arabia Mountain Nature Preserve, DeKalb County, Georgia 3
Alan Cressler:
Didymosphenia geminata, Smith River, below Philpott Dam, Franklin and Henry Counties, Virginia 1
Alan Cressler:
Didymosphenia geminata, Smith River, below Philpott Dam, Franklin and Henry Counties, Virginia 2
Alan Cressler:
Didymosphenia geminata, Smith River, below Philpott Dam, Franklin and Henry Counties, Virginia 3
Alan Cressler:
Didymosphenia geminata, Smith River, below Philpott Dam, Franklin and Henry Counties, Virginia 4
Alan Cressler:
Dreissena polymorpha, Button Point (Sickle Point), Button Bay, Lake Champlain, Button Bay State Park, Addison County, Vermont 1
Alan Cressler:
Dungeness Marsh, Cumberland Island National Seashore, Camden County, Georgia 1
Alan Cressler:
Elaeagnus angustifolia, South Fork Gordon Creek, BLM Lands, Carbon County, Utah 1
Alan Cressler:
Elaeagnus angustifolia, South Fork Gordon Creek, BLM Lands, Carbon County, Utah 2
Alan Cressler:
Equus ferus caballus, Dungeness, Cumberland Island National Seashore, Camden County, Georgia 1
Alan Cressler:
Equus ferus caballus, Dungeness, Cumberland Island National Seashore, Camden County, Georgia 2
Alan Cressler:
Equus ferus caballus, Dungeness, Cumberland Island National Seashore, Camden County, Georgia 3
Alan Cressler:
Gills Creek, downstream of Rosewood Drive, Columbia, Richland County, South Carolina 2
