 Rocks and Can Creek from western section of East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 Western section of East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 Foliage on western section of East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 Ponds of Can Creek from western section of East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 Pond with rocks in Lost Maples State Natural Area, on East Trail. Vanderpool, Texas, November 7, 2008
 Back-lit trees on East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 Stones and trees in Lost Maples State Natural Area, on East Trail. Vanderpool, Texas, November 7, 2008
 Red foliage of maple trees in Lost Maples State Natural Area, on East Trail. Vanderpool, Texas, November 7, 2008
 Maples near East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 Rocks, a pond and a foot bridge of Maple Trail, view from East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 Reddish maple leaves in Lost Maples State Natural Area, on East Trail. Vanderpool, Texas, November 7, 2008
 Prickly pears cactus on East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 East Trail crowded by park visitors in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 Ponds of Can Creek from an overlook of East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 Red foliage of bigtooth maple on East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 Fall foliage of bigtooth maple on East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 East Trail on a grassy terrace in Lost Maples State Natural Area, close to parking. Vanderpool, Texas, November 8, 2008
 Hillside view west from East Trail in Lost Maples State Natural Area, close to parking. Vanderpool, Texas, November 8, 2008
 Rock shelters of Hale Hollow Creek near East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 Ball moss (Tillandsia recurvata) on a maple tree in Lost Maples State Natural Area, on East Trail. Vanderpool, Texas, November 7, 2008
 Rock shelters of Hale Hollow Creek East Trail in Lost Maples State Natural Area, at evening. Vanderpool, Texas, November 8, 2008
 Ball moss (Tillandsia recurvata) in tangled balls around a tree branch in Lost Maples State Natural Area, on East Trail. Vanderpool, Texas, November 7, 2008
 Water stream of Can Creek from West Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 Bigtooth maple in Lost Maples State Natural Area, near parking. Vanderpool, Texas, November 7, 2008
 Sabinal River in Lost Maples State Natural Area, near parking. Vanderpool, Texas, November 7, 2008
 Sabinal River from East Trail in Lost Maples State Natural Area. Vanderpool, Texas, December 30, 2007
 Waterfall of Can Creek from West Trail in Lost Maples State Natural Area. Vanderpool, Texas, December 30, 2007
 Rocks east from Turkey Pass Trail in Enchanted Rock State Natural Area. Fredericksburg, Texas, October 27, 2007
 Rocks on a slope of Freshman Mountain east from Turkey Pass Trail in Enchanted Rock State Natural Area. Fredericksburg, Texas, October 27, 2007
 Mushroom rocks (differential weathering of shaded sides of rocks) in Enchanted Rock State Natural Area. Fredericksburg, Texas, October 27, 2007
 Weathering of rocks near Turkey Pass Trail in Enchanted Rock State Natural Area. Fredericksburg, Texas, October 27, 2007
 Lichens on rocks near Turkey Pass Trail in Enchanted Rock State Natural Area. Fredericksburg, Texas, October 27, 2007
 Weathered pedestal rocks at the top of Freshman Mountain. Enchanted Rock State Natural Area, Fredericksburg, Texas, December 25, 2018
 Masses of flakes of leather lichen (Dermatocarpon) on a horizontal granite surface in a shade of big rocks in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Zigzag cliff-brake fern (Pellaea ovata) in shade of big rocks on Freshman Mountain in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Roots of cypress trees 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 damaged 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
 Trees trimmed by floodings 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
 Painted lady butterfly (Vanessa virginiensis) on mullein flower in east area of Lost Pines State Park. Bastrop, Texas, November 14, 2009
 Cypress trees combed by floodwaters in Beach Area in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Dry trees in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Cypress trees combed by past floodings in Beach Area in Pedernales Falls State Park. Johnson City, Texas, November 29, 2008
 Painted lady butterfly (Vanessa virginiensis) with closed wings on mullein flower in east area of Lost Pines State Park. Bastrop, Texas, November 14, 2009
 Entangled dead trees from east side of Spillway Trail in Brazos Bend State Park. Needville, Texas, December 14, 2008
 Southern Jack O Lantern mushrooms (Omphalotus subilludens) on Lost Pines Trail in Lost Pines State Park. Bastrop, Texas, November 14, 2009
 Cacti east from Turkey Pass Trail in Enchanted Rock State Natural Area. Fredericksburg, Texas, October 27, 2007
 Gray Hairstreak (Strymon melinus) butterfly on flower heads of fragrant cudweed (sweet everlasting, Pseudognaphalium obtusifolium) in east area of Lost Pines State Park. Bastrop, Texas, November 14, 2009
 Trees on Bushman s Ranch at morning, view from Road 30, east from Shiro. Texas, November 1, 2008
 Broken trees on Lost Pines Trail in Bastrop State Park. Bastrop, Texas, October 5, 2013
 Broken trees covering Lost Pines Trail in Bastrop State Park. Bastrop, Texas, January 5, 2013
 Trees treated by mulch near Lost Pines Trail in Bastrop State Park. Bastrop, Texas, April 21, 2012
 Damaged trees hanging over Lost Pines Trail in Bastrop State Park. Bastrop, Texas, January 5, 2013
 Cypresses and rocks below Beach Area in Pedernales Falls State Park. Johnson City, Texas, November 7, 2009
 Rocks and a cypress above Pedernales Falls. Johnson City, Texas, November 29, 2008
 Rocks and a cave near Pedernales Falls. Johnson City, Texas, November 29, 2008
 Area of red rocks on Blue Creek Trail. Big Bend National Park, November 29, 2009
 Walking on Lost Pines Trail in Bastrop State Park. Bastrop, Texas, May 17, 2008
 Dumpling Rocks, or "House on the Rocks" and Newport Bridge in East Passage of Narragansett Bay, view from a ferry. Rhode Island, September 5, 2004
 Cypress trees lining Pedernales River below bluffs in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Sycamore trees near Iron Bridge Trail in Lick Creek Park. College Station, Texas, November 20, 2008
 Red trail near Piney Hill Campgrounds in Lost Pines State Park. Bastrop, Texas, November 14, 2009
 A trail near Piney Hill Campgrounds in Lost Pines State Park. Bastrop, Texas, November 14, 2009
 A trail near Piney Hill Campgrounds in Lost Pines State Park. Bastrop, Texas, November 14, 2009
 Sand and rocks in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
 Windblown sand with rocks in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
 Gypsum rocks (selenite) in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
 CCC pavilion at an overlook in Lost Pines State Park. Bastrop, Texas, September 6, 2008
 Members of the Qatar Natural History Group (QNHG) exploring area of gypsum crystal pavement (selenite) during fossil trip in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
 A trail with smoke rising from Piney Hill Campgrounds in Lost Pines State Park. Bastrop, Texas, November 14, 2009
 Purslane-leaved aizoon (Aizoon canariense) growing on rocks near a road to Zubara in Al Magdah farms area, in north-western Qatar, February 22, 2014
 Turkey Pass Trail in Enchanted Rock State Natural Area. Fredericksburg, Texas, October 27, 2007
 Lost Pines Trail in Bastrop State Park. Bastrop, Texas, November 4, 2007
 Lost Pines Trail in mist in Bastrop State Park. Bastrop, Texas, November 4, 2007
 Trees in Boonville Cemetery in fog. Bryan, Texas, November 13, 2008
 Tombs and trees of Boonville Cemetery in fog. Bryan, Texas, November 13, 2008
 Many Warts mushroom (Amanita polypyramis) on Lost Pines Trail in Bastrop State Park. Bastrop, Texas, November 4, 2007
 Prickly pear cactus on Turkey Pass Trail in Enchanted Rock State Natural Area. Fredericksburg, Texas, October 27, 2007
 Sunset over volcanic rocks of Timna Massif, view from the entrance to the park, 13 miles north from Eilat. The Middle East, November 7, 2002
 Barren area of Lost Pines Trail in Bastrop State Park. Bastrop, Texas, October 5, 2013
 Area of Lost Pines hiking trail in Bastrop State Park. Bastrop, Texas, April 21, 2012
 Area of Echo Canyon in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Roman Cave (?) (blue trail) in western Timna Park, 13 miles north from Eilat. The Middle East, November 7, 2002
 Roman Cave (?) (blue trail) in western Timna Park, 13 miles north from Eilat. The Middle East, November 7, 2002
 Roman Cave (?) (blue trail) in western Timna Park, 13 miles north from Eilat. The Middle East, November 7, 2002
 Pink Canyon (?) from Blue Trail in western Timna Park, 13 miles north from Eilat. The Middle East, November 7, 2002
 A small wadi from a trail below western cliffs in Timna Park, 13 miles north from Eilat. The Middle East, November 7, 2002
 Green moss in area of water seepage in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Beach Area in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
 Flowers and a trees of Johnsons Ranch at Clay Creek Road, east from Mayfair Lane. Independence, Texas, April 7, 2008
 Roots in north area of 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
 Cypresses 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
 Members of the Qatar Natural History Group (QNHG) exploring glittering gypsum pavement (selenite) during fossil trip in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
 A wadi along the blue trail (area of canyons) in western Timna Park, near Eilat. The Middle East, April 25, 2001
 River flats in north area of Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
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