 A gorge in Noccalula Falls Park. Gadsden, Alabama, January 15, 2006
 A creek 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
 Narrowed stream below the falls in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Rapids of Glen creek in Watkins Glen State Park near upper entrance. New York, October 13, 2005
 International students of Purdue University walking over rapids and tubs of a creek in Potholes Park (Fall Creek Gorge) near Pine Village. Indiana, June 5, 1999.
 Mountain laurel flowers on Blue Trail in DeSoto State Park on Lookout Mountain. Fort Payne, Alabama, May 19, 2007
 Rapids of Tosna River near Sablino, south from Saint Petersburg. Russia, May 21, 2011
 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
 Rapids of Lava River in Zhiharevo, east from Saint Petersburg. Russia, June 2, 2011
 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
 Cypress Pool below the falls in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Indian mallow (Abutilon fruticosa) near a parking of Upper falls in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Dry cypress stump in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Base of a cypress in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 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
 Tip of a cypress knee in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Forking of cypress roots in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Texture of cypress bark 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
 Texture of a dry cypress stump 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
 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
 Hollow part of a cypress tree in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Alligator skinned cypress roots 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
 Base of a cypress tree at sunset in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 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
 Hollow part of a cypress tree at sunset in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Cypress roots enveloping a river boulder in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 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
 Entangled cypress roots growing over river boulders in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Weathered white boulder in area of Cypress Pool in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Pebbles inside a nest-like cavity of a cypress tree in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Texas aster with variegated fritillary(?) butterfly near a pond of Upper falls in McKinney Falls State Park. Austin, Texas, October 26, 2008
 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
 Texas aster (Aster texanus) near a pond of Upper falls in McKinney Falls State Park. Austin, Texas, October 26, 2008
 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
 Taughannock Falls, view from upper falls overlook at rain. Ithaca, New York, November 9, 2005
 Frozen Taughannock Falls near Ithaca, view from upper falls overlook. New York, December 10, 2005
 First snow at Taughannock Falls near Ithaca, view from upper falls overlook. New York, November 23, 2005
 Taughannock Falls near Ithaca, view from upper falls overlook, at cold morning. New York, November 24, 2005
 Taughannock Falls near Ithaca, view from upper falls overlook, at light snowfall. New York, November 23, 2005
 Lakeshore Park in fog. New Orleans, Louisiana, January 21, 2006
 Pine trees of Lakeshore Park in fog. New Orleans, Louisiana, January 21, 2006
 - Turner Falls and a festival in Davis OK 6/28/97 (Turner Falls - a trip to Colorado Mountains, June 28 - July 5, 1997)
 - Turner Falls and a festival in Davis OK 6/28/97 (Turner Falls - a trip to Colorado Mountains, June 28 - July 5, 1997)
 - Turner Falls and a festival in Davis OK 6/28/97 (Turner Falls - a trip to Colorado Mountains, June 28 - July 5, 1997)
 - Turner Falls and a festival in Davis OK 6/28/97 (Turner Falls - a trip to Colorado Mountains, June 28 - July 5, 1997)
 - Turner Falls and a festival in Davis OK 6/28/97 (Turner Falls - a trip to Colorado Mountains, June 28 - July 5, 1997)
 Mountain Run(?) Lake east from Skyline Drive of Shenandoah National Park. Virginia, January 13, 2006
 Pioneer cemetery near northern park boundary at Wilson Ranch Road in Pedernales Falls State Park. Johnson City, Texas, November 10, 2007
 - Turner Falls (New York, June 23 - 24 and a trip to Turner Falls, May 28, 1997)
 Taughannock Falls from upper overlook, at high water (compare with Taughannock Falls at low water). Ithaca, New York, October 26, 2005
 Taughannock Falls near Ithaca from upper overlook, at low water (compare with Taughannock Falls at high water). New York, October 5, 2005
 Dam of Falls on the Brazos Park. Marlin, Texas, July 17, 2011
 Firehole Falls. Yellowstone Park, Wyoming, July 24, 2010
 Falls on the Brazos Park. Marlin, Texas, July 17, 2011
 An alligator warming near Marsh Overlook Trail in Jean Lafitte Park, Barataria Preserve, south from New Orleans. Louisiana, January 29, 2006
 An alligator sunning near Marsh Overlook Trail in Jean Lafitte Park, Barataria Preserve, south from New Orleans. Louisiana, January 29, 2006
 In Buttermilk Falls State Park. Ithaca, New York, October 13, 2005
 Pluto Falls in Watkins Glen State Park. New York, October 13, 2005
 A wall of the gorge in Taughannock Falls State Park. New York, November 23, 2005
 A gorge in Buttermilk Falls State Park near Ithaca. New York, October 8, 2005
 Cliffs of Taughannock Falls State Park near Ithaca. New York, October 5, 2005
 A cotton mill in Dunn s Falls Water Park. Meridian, Mississippi, May 20, 2007
 Little waterfalls in Buttermilk Falls State Park. Ithaca, New York, October 13, 2005
 Forest of Taughannock Falls State Park near Ithaca. New York, October 5, 2005
 Jackson Square and Saint Louis Cathedral in French Quarter in mist at morning, view from Washington Artillery Park. New Orleans, Louisiana, January 30, 2006
 A marsh and tupelo forest, from overlook of Bayou Coquille Trail in Jean Lafitte Park, Barataria Preserve, south from New Orleans. Louisiana, January 29, 2006
 Chapman Falls in Devils Hopyard State Park. East Haddam, Connecticut, May 22, 2004
 Chapman Falls in Devils Hopyard State Park. East Haddam, Connecticut, May 22, 2004
 Buffalo bur (Solanum rostratum) in McKinney Falls State Park near Austin. Texas, May 10, 2009
 Mechanisms of a grist mill in Dunns Falls Park. Meridian, Mississippi, February 1, 2007
 Upper waterfall of Buttermilk Falls State Park. Ithaca, New York, November 15, 2005
 Chapman Falls in Devils Hopyard State Park. East Haddam, Connecticut, May 22, 2004
 Small falls in Robert H. Treman State Park. Ithaca, New York, October 12, 2005
 Chapman Falls in Devils Hopyard State Park. East Haddam, Connecticut, May 22, 2004
 Gorge trail in Buttermilk Falls State Park near Ithaca. New York, October 8, 2005
 Area of Rainbow Falls in Watkins Glen State Park. New York, October 13, 2005
 A log on South Rim Trail in Taughannock Falls State Park. Ithaca, New York, October 26, 2005
 A plant in a gorge of Taughannock Falls State Park near Ithaca. New York, October 8, 2005
 One of potholes of Chapman Falls in Devils Hopyard State Park. East Haddam, Connecticut, May 22, 2004
 Chapman Falls, zoomed, in Devils Hopyard State Park. East Haddam, Connecticut, May 22, 2004
 Foliage on Bear Trail in Buttermilk Falls State Park. Ithaca, New York, October 13, 2005
 - Central Park and Museum of Natural History (New York, June 23 - 24 and a trip to Turner Falls, May 28, 1997)
 A waterfall in Buttermilk Falls State Park, near upper entrance. Ithaca, New York, October 23, 2005
 A gorge in Buttermilk Falls State Park, near upper entrance. Ithaca, New York, October 13, 2005
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