 A creek in Noccalula Falls Park. Gadsden, Alabama, January 15, 2006
 Rapids in Noccalula Falls Park. Gadsden, Alabama, January 15, 2006
 Noccalula Falls. Gadsden, Alabama, February 1, 2007
 Lost Falls near Blue Trail in DeSoto State Park on Lookout Mountain. Fort Payne, Alabama, May 19, 2007
 Laurel Falls near Orange Trail in DeSoto State Park on Lookout Mountain. Fort Payne, Alabama, May 19, 2007
 A gorge in Buttermilk Falls State Park near Ithaca. New York, October 8, 2005
 A wall of the gorge in Taughannock Falls State Park. New York, November 23, 2005
 Gorge trail in Buttermilk Falls State Park near Ithaca. New York, October 8, 2005
 A plant in a gorge of Taughannock Falls State Park near Ithaca. New York, October 8, 2005
 Steps of gorge trail in Buttermilk Falls State Park near Ithaca. New York, October 8, 2005
 A gorge in Buttermilk Falls State Park, near upper entrance. Ithaca, New York, October 13, 2005
 Enfield gorge and Lucifer Falls in Robert H. Treman State Park near Ithaca. New York, October 8, 2005
 Fallen sycamore tree in snow near Gorge Trail in Taughannock Falls State Park. New York, November 23, 2005
 Puzzle-like bark of a fallen sycamore near Gorge Trail in Taughannock Falls State Park. Ithaca, New York, October 11, 2005
 Limestone rocks near the falls in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Narrowed stream below the falls in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Mountain laurel flowers on Blue Trail in DeSoto State Park on Lookout Mountain. Fort Payne, Alabama, May 19, 2007
 Lower Falls in Taughannock Falls State Park. Ithaca, New York, October 11, 2005
 Lake below the falls in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Cypress Pool below the falls in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Creek and a cypress in McKinney Falls State Park, near Upper falls. Austin, Texas, October 26, 2008
 Twin falls in Pedernales Falls State Park, from an overlook. Johnson City, Texas, November 7, 2009
 Geye Bahak Gorge, 2 miles north from Masada. The Middle East, January 20, 2001
 Geye Bahak Gorge, 2 miles north from Masada. The Middle East, January 20, 2001
 Indian mallow (Abutilon fruticosa) near a parking of Upper falls in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Picnic at Geye Bahak Gorge, 2 miles north from Masada. The Middle East, January 20, 2001
 Picnic at Geye Bahak Gorge, 2 miles north from Masada. The Middle East, January 20, 2001
 Entrance to Nahal Tseelim River Gorge, 2 miles north from Masada. The Middle East, January 20, 2001
 Steel cable suspension bridge downstream from the falls in Chalk Ridge Falls Park, below a dam of Stillhouse Hollow Lake. Belton - Killeen, Texas, August 17, 2008
 Dry riverbed in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Texas aster with variegated fritillary(?) butterfly near a pond of Upper falls in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Giant boulder in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Small waterfall in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Water cascade in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Waterfalls from the overlook in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Side waterfall in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Water stream in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Base of a cypress in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Dry cypress stump in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Tip of a cypress knee in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Water cascades in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Water and rocks in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Cracked limestone in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Small waterfall in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Texture of a dry cypress stump in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Black limestone rocks in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Leather lichen (Dermatocarpon) in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Forking of cypress roots in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Pattern of cypress roots in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Growth on cypress roots in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Small water stream in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Various crustose lichens on limestone in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Texture of cypress bark in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Gnarls on a cypress tree in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Knotted cypress roots in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Weathered cypress roots in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Entrance to Nahal Tseelim River Gorge from Dead Sea, 2 miles north from Masada, view from a parking place. The Middle East, January 20, 2001
 A.S. at entrance to Nahal Tseelim River Gorge from Dead Sea, 2 miles north from Masada, view from a parking place. The Middle East, January 20, 2001
 Dwarf yellow butterfly (Dainty Sulphur, Nathalis iole) on Texas aster near a pond of Upper falls in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Base of a cypress tree at sunset in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Base of a large cypress tree in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Grey crustose lichen on limestone in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Leather lichen (Dermatocarpon) on limestone in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Dirinaria lichen on a dry red cedar tree in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Black lichen Verrucaria on limestone in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Lichens and sorrel on shady limestone in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Buellia and other lichens on a limestone rock in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Crustose lichens of different colors on limestone in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Alligator skinned cypress roots in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Hollow part of a cypress tree in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Leather lichen (Dermatocarpon) on limestone in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 A creek on north side of Geye Bahak Gorge, 2 miles north from Masada. The Middle East, January 20, 2001
 Cypress roots enveloping a river boulder in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Button lichen (Buellia) on limestone near the river in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Smooth limestone rocks near the water stream in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Hollow part of a cypress tree at sunset in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Dark-green crustose lichen on limestone in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Some whitish lichen on a limestone rock near the river in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Leather lichen (Dermatocarpon) on limestone in a forest in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Tar-jelly lichen (Collema) on limestone conglomerate in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Dust lichen (Lepraria) in shade of cliffs in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Button lichen (Buellia) on a limestone rock in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Brown and orange crustose lichens on limestone in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Ruffle lichen (Parmotrema) on a dry red cedar tree in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Stones embedded into a base of a cypress tree in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Molten cypress root engulfing a stone in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Button lichen (Buellia) on a limestone rock in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Ant Sarah Falls in village of Montour Falls. New York, November 3, 2005
 Shequaga Falls in village of Montour Falls. New York, November 1, 2005
 Taughannock Falls near Ithaca, view from upper falls overlook. New York, October 8, 2005
 Patches of button lichen (Buellia) on a limestone rock in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Close up of black and green lichen Verrucaria on limestone in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Button lichen (Buellia) on limestone rock near the river in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Dust lichen (Lepraria) on limestone in shade of cliffs in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Weathered white boulder in area of Cypress Pool in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Green Cladonia lichen on sandstone or limestone in a forest in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 White patch of Aspicilia lichen on a limestone rock in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Ruffle lichen (Parmotrema) on a mossy limestone rock in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Entangled cypress roots growing over river boulders in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
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