Alan Cressler:
Beggiatoa alba (possible identification), Sulphur Spring, Blount County, Alabama 2
Alan Cressler:
Bell-Collins Site, Hurricane Creek, Upper Paint Rock River System, Jackson County, Alabama 1
Alan Cressler:
Bell-Collins Site, Hurricane Creek, Upper Paint Rock River System, Jackson County, Alabama 2
Alan Cressler:
Bell-Collins Site, Hurricane Creek, Upper Paint Rock River System, Jackson County, Alabama 3
Alan Cressler:
Bell-Collins Site, Hurricane Creek, Upper Paint Rock River System, Jackson County, Alabama 4
Alan Cressler:
Big Coon Blue Hole, Big Coon Creek, Jackson County, Alabama 1
Alan Cressler:
Blackburn Fork Little Black Warrior River, above Dumas Bridge Road, U.S. Geological Survey, SESQA Ecology sample site, Blount County, Alabama 1
Alan Cressler:
Blue Pool, Williams Cove, James D. Martin-Skyline Wildlife Management Area, Jackson County, Alabama 1
Alan Cressler:
Brooks Branch, Little River Canyon National Preserve, DeKalb County, Alabama 1
Alan Cressler:
Bryant Creek, Jones Cove, Sand Mountain, Jackson County, Alabama 1
Alan Cressler:
Cahaba River, Bibb County, Alabama 1
Alan Cressler:
Cahaba River, Bibb County, Alabama, Noah Yawn, Paul Aughey, Alan Cressler, Nancy Aulenbach, Ella Yawn 1
Alan Cressler:
Cahaba River, Cabaha River National Wildlife Refuge, Bibb County, Alabama 1
Alan Cressler:
Cahaba River, Cabaha River National Wildlife Refuge, Bibb County, Alabama 2
Alan Cressler:
Cahaba River, Cabaha River National Wildlife Refuge, Bibb County, Alabama 3
Alan Cressler:
Cahaba River, Cliff, Longview Limestone, Ordovician Age, Bibb County, Alabama, Brent Aulenbach, Noah Yawn, Paul Aughey, Alan Cressler, Nancy Aulenbach, Ella Yawn 1
Alan Cressler:
Cahaba River, Cliff, Longview Limestone, Ordovician Age, Bibb County, Alabama, Brent Aulenbach, Noah Yawn, Paul Aughey, Alan Cressler, Nancy Aulenbach, Ella Yawn 2
Alan Cressler:
Cahaba River, Cliff, Longview Limestone, Ordovician Age, Bibb County, Alabama, Brent Aulenbach, Noah Yawn, Paul Aughey, Alan Cressler, Nancy Aulenbach, Ella Yawn 3
Alan Cressler:
Cahaba Valley Creek, Pelham, Shelby County, Alabama 2
Alan Cressler:
Cheaha Creek, Cheaha Creek Gorge, Talladega National Forest, Clay County, Alabama 1
Alan Cressler:
Cheaha Creek, Cheaha Creek Gorge, Talladega National Forest, Clay County, Alabama 2
Alan Cressler:
Cheaha Creek, Chinnabee Silent Trail, Talladega National Forest, Clay County, Alabama 1
Alan Cressler:
Chewacla Creek, Chewacla State Park, Lee County, Alabama 1
Alan Cressler:
Chewacla Creek, Chewacla State Park, Lee County, Alabama 2
Alan Cressler:
Chewacla Creek, Chewacla State Park, Lee County, Alabama 3
Alan Cressler:
Clear Creek, in Flood, Jackson County, Alabama 1
Alan Cressler:
Coker Mill Creek, Canyon, Covington County, Alabama 5
Alan Cressler:
Conecuh River, Covington County, Alabama 1
Alan Cressler:
Fern Wall, Upper Eocene age, Moodys Branch Formation, Jackson Group, Conecuh River, Covington County, Alabama 1
Alan Cressler:
Halawakee Creek, Lee County, Alabama 1
