Alan Cressler:
Big Spring, Comanche Trail Park, Big Spring, Howard County, Texas 1
Alan Cressler:
Blue Spring, Dolan Falls Preserve, The Nature Conservancy, Val Verde County, Texas 1
Alan Cressler:
Blue Spring, Dolan Falls Preserve, The Nature Conservancy, Val Verde County, Texas 2
Alan Cressler:
Blue Spring, Dolan Falls Preserve, The Nature Conservancy, Val Verde County, Texas 3
Alan Cressler:
Blue Spring, Dolan Falls Preserve, The Nature Conservancy, Val Verde County, Texas 4
Alan Cressler:
Blue Spring, Dolan Falls Preserve, The Nature Conservancy, Val Verde County, Texas 5
Alan Cressler:
Blue Spring, Dolan Falls Preserve, The Nature Conservancy, Val Verde County, Texas 6
Alan Cressler:
Cane Hot Spring, Big Bend National Park, Brewster County, Texas, Paul Aughey, Doug Strait, Manuel Beers 2
Alan Cressler:
Devils River Spring, Devils River State Natural Area, Val Verde County, Texas 2
Alan Cressler:
Indian Head Spring, Indian Head, Big Bend National Park, Brewster County, Texas 1
Alan Cressler:
Spring Lake, San Marcos, Hays County, Texas 1
Alan Cressler:
Spring Lake, San Marcos, Hays County, Texas 2
Alan Cressler:
Spring Lake, San Marcos, Hays County, Texas 3
Alan Cressler:
Spring Lake, San Marcos, Hays County, Texas 4