 Waterfall of Chalk Ridge Falls Park, below a dam of Stillhouse Hollow Lake. Belton - Killeen, Texas, August 17, 2008
 Waterfall of Chalk Ridge Falls Park, below a dam of Stillhouse Hollow Lake. Belton - Killeen, Texas, May 17, 2009
 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
 Tributary of Lampasas River near the entrance of Chalk Ridge Falls Park, below a dam of Stillhouse Hollow Lake. Belton - Killeen, Texas, August 17, 2008
 Limestone cave with a spring of a tributary of Lampasas River near the entrance of Chalk Ridge Falls Park, below a dam of Stillhouse Hollow Lake. Belton - Killeen, Texas, August 17, 2008
 River bed of a tributary of Lampasas River near the entrance of Chalk Ridge Falls Park, below a dam of Stillhouse Hollow Lake. Belton - Killeen, Texas, August 17, 2008
 Old suspension bridge over a tributary of Lampasas River at the head of Stillhouse Hollow Nature Trail in Chalk Ridge Falls Park. Belton - Killeen, Texas, August 17, 2008
 Pretty sneezeweed (Helenium elegans) with down-flexed ray flowers near Lampasas River in Chalk Ridge Falls Park, below a dam of Stillhouse Hollow Lake. Belton - Killeen, Texas, May 17, 2009
 A spring with maiden ferns of a small creek in Chalk Ridge Falls Park. Belton - Killeen, Texas, May 17, 2009
 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
 Lake below the falls in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Pond above Pedernales Falls. Johnson City, Texas, November 29, 2008
 Upper waterfall of Buttermilk Falls State Park. Ithaca, New York, November 15, 2005
 Side waterfall in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Small waterfall in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Small waterfall in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 A waterfall in Buttermilk Falls State Park, near upper entrance. Ithaca, New York, October 23, 2005
 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
 Indian mallow (Abutilon fruticosa) near a parking of Upper falls in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Hollow part of a cypress tree in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Hollow part of a cypress tree at sunset in Pedernales Falls State Park. Johnson City, Texas, January 12, 2013
 Dark Hollow Falls near Skyline Drive. The Meadow, Virginia, May 16, 2007
 A waterfall near Blue Ridge Parkway, near Mile 80. Peaks of Otter, Virginia, May 17, 2007
 Givat Rehavam hill cone made of chalk and marl, view from a ridge along Gishron cliffs (trail 20564) 3 miles west from Eilat. The Middle East, January 17, 2002
 Givat Rehavam hill cone made of chalk and marl, view from a ridge along Gishron cliffs (trail 20564) 3 miles west from Eilat. The Middle East, October 17, 2002
 Givat Rehavam hill cone made of chalk and marl, view from a ridge along Gishron cliffs (trail 20564) 3 miles west from Eilat. The Middle East, October 17, 2002
 Givat Rehavam hill cone made of chalk and marl, view from a ridge along Gishron cliffs (trail 20564) 3 miles west from Eilat. The Middle East, October 17, 2002
 A waterfall near Old Lodging Railroad at Upper Otter Creek Overlook at mile 35 of Blue Ridge Parkway. Buena Vista, Virginia, May 17, 2007
 Hoots Hollow Trail in Brazos Bend State Park. Needville, Texas, December 14, 2008
 Oaks of Hoots Hollow Trail in Brazos Bend State Park. Needville, Texas, December 14, 2008
 Vines on Hoots Hollow Trail in Brazos Bend State Park. Needville, Texas, December 14, 2008
 Oaks and vines on Hoots Hollow Trail in Brazos Bend State Park. Needville, Texas, December 14, 2008
 Hamilton Pool and waterfall. West from Austin, Texas, December 20, 2008
 A waterfall of a creek flowing from Sunfish Pond, near Mine Road. Delaware Water Gap, New Jersey, May 12, 2007
 Chatfield Hollow Brook and a covered bridge in Chatfield Hollow State Park. Killingworth, Connecticut, June 6, 2004
 Trail around Hamilton Pool and waterfall. West from Austin, Texas, December 20, 2008
 Chatfield Hollow Brook, view from a covered bridge in Chatfield Hollow State Park. Killingworth, Connecticut, June 6, 2004
 A small waterfall of Dunnfield Creek south from Sunfish Pond. Delaware Water Gap, New Jersey, March 31, 2007
 Pavilion near a pond, near George Bush Presidential Library Center. College Station, Texas, August 19, 2008
 Beach Area in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Falls near Old Lodging Railroad at Upper Otter Creek Overlook at mile 35 of Blue Ridge Parkway. Buena Vista, Virginia, May 17, 2007
 Mustard flowers in grist mill in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Fishing in Cypress Pool in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Cypresses in Beach Area in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Palafoxia callosa near Onion Creek in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Roots in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Area of Trummel Crossing in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Cypresses in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Hamilton Creek below the waterfall, in Hamilton Pool Preserve. West from Austin, Texas, December 20, 2008
 Cypress on Hamilton Creek below the waterfall, in Hamilton Pool Preserve. West from Austin, Texas, December 20, 2008
 Pools of Hamilton Creek below the waterfall, in Hamilton Pool Preserve. West from Austin, Texas, December 20, 2008
 River downstream from Cypress Pool in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Cypress forest in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Stones downstream from Cypress Pool in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Cypresses "bonsai" in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Red cypress foliage in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 River flats in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Trunk of a bald cypress below bluffs in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Pond in Little Lake Creek Wilderness in Sam Houston Forest. Huntsville, Texas, February 17, 2008
 Cypress knees in Hamilton Creek below the waterfall, in Hamilton Pool Preserve. West from Austin, Texas, December 20, 2008
 Cypress trees in Hamilton Creek below the waterfall, in Hamilton Pool Preserve. West from Austin, Texas, December 20, 2008
 Cypresses on a river island in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 "Porcupine egg" of cocklebur (Xanthium strumarium) near Onion Creek in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Trees damaged by floodings in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Rusty cypress foliage in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Bald cypress trees in Beach Area in Pedernales Falls State Park. Johnson City, Texas, November 29, 2008
 Trees trimmed by floodings in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Dying cypress trees in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Roots of cypress trees in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Trunks of dead trees in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Cypress trees and roots in Hamilton Creek below the waterfall, in Hamilton Pool Preserve. West from Austin, Texas, December 20, 2008
 Rock shelters of Hale Hollow Creek near East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 Ruin Cascade Waterfall in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, August 22, 2016
 Rusty cypress foliage on a river in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Opposite side of the river downstream from Cypress Pool in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Fall colors of a cypress tree in Beach Area in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Cypress trees combed by floodwaters in Beach Area in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Angels Showers waterfall in a cave of Ozark Caverns in Lake of the Ozarks State Park. Missouri, September 10, 2005
 Rock shelters of Hale Hollow Creek East Trail in Lost Maples State Natural Area, at evening. Vanderpool, Texas, November 8, 2008
 A pond at morning in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 30, 2008
 Tetrameric flower of water-primrose willowherb (Ludwigia) near Onion Creek in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Cypress trees combed by past floodings in Beach Area in Pedernales Falls State Park. Johnson City, Texas, November 29, 2008
 View from opposite side of the river downstream from Cypress Pool in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Christmas cholla cactus (Tasajillo, Opuntia leptocaulis) on Homestead Trail in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Rattlebush thickets around a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 30, 2008
 Smartweed (Polygonum) at a cattle drinking pond near a road along north shore of Lake Somerville near Birch Creek Unit Somerville Lake State Park. Texas, August 29, 2009
 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
 Twin falls in Pedernales Falls State Park, from an overlook. Johnson City, Texas, November 7, 2009
 Lower Falls in Taughannock Falls State Park. Ithaca, New York, October 11, 2005
 Galls (hollow blisters) on leaves of common ragweed (Ambrosia artemisiifolia) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 30, 2021
 Turnsole (Heliotropium indicum) at a cattle drinking pond near a road along north shore of Lake Somerville near Birch Creek Unit Somerville Lake State Park. Texas, August 29, 2009
 Blooming rattlebush (Sesbania drummondii) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 30, 2008
 Gorchakovshchina (Gorchakovsky) Waterfall near Volkhov. Leningrad Region, Russia, August 6, 2016
 Pedernales River in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Cypress downstream from Cypress Pool in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
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