 Valley of Smokey Creek, view to the east from a trail north from Mule Ear Peaks. Big Bend National Park, Texas, November 25, 2007
 Smokey Creek Trail through creosote bushes and cacti east from Mule Ear Overlook. Big Bend National Park, Texas, November 25, 2007
 Smokey Creek Trail near Trap Spring east from Mule Ear Overlook, view to the west. Big Bend National Park, Texas, November 25, 2007
 Mule Ear Peaks from Smokey Creek Trail. Big Bend National Park, Texas, November 25, 2007
 Smokey Creek Trail north from Mule Ear Peaks. Big Bend National Park, Texas, November 25, 2007
 Ocotillo on Smokey Creek Trail north from Mule Ear Peaks. Big Bend National Park, Texas, November 25, 2007
 Purple-tinged prickly pear cactus on Smokey Creek Trail near Trap Spring east from Mule Ear Overlook. Big Bend National Park, Texas, November 25, 2007
 Trap Mountain(?) west from Smokey Creek Trail near Trap Spring east from Mule Ear Overlook. Big Bend National Park, Texas, November 25, 2007
 Smokey Creek Trail east from Mule Ear Spring. Big Bend National Park, Texas, November 25, 2007
 Pitaya(?) cactus on Smokey Creek Trail east from Mule Ear Spring. Big Bend National Park, Texas, November 25, 2007
 Santa Elena Canyon west from Smokey Creek Trail east from Mule Ear Spring. Big Bend National Park, Texas, November 25, 2007
 Bee Mountain, view to the west from Smokey Creek Trail near Mule Ear Spring. Big Bend National Park, Texas, November 25, 2007
 Goat Mountain, view to the north from Smokey Creek Trail near Mule Ear Spring. Big Bend National Park, Texas, November 25, 2007
 Maiden ferns at Mule Ear Spring. Big Bend National Park, Texas, November 25, 2007
 Agave on Smokey Creek Trail. Big Bend National Park, Texas, November 24, 2007
 Dallas Sierra Club on Smokey Creek Trail at rain. Big Bend National Park, Texas, November 24, 2007
 Desert mistletoe(?) growing on ocotillo, view from Smokey Creek Trail. Big Bend National Park, Texas, November 25, 2007
 Canyon of Smokey Creek. Big Bend National Park, Texas, November 25, 2007
 Pour-off of Smokey Creek. Big Bend National Park, Texas, November 25, 2007
 Cactus on rocks of Smokey Creek. Big Bend National Park, Texas, November 25, 2007
 Purple-tinged prickly pear cactus in the middle part of Smokey Creek Trail. Big Bend National Park, Texas, November 25, 2007
 Cacti on east part of Dodson Trail. Big Bend National Park, Texas, November 23, 2007
 Sotol and Southeast Rim, view from east part of Dodson Trail. Big Bend National Park, Texas, November 23, 2007
 Cane Cholla cactus and Southeast Rim, view from east part of Dodson Trail. Big Bend National Park, Texas, November 23, 2007
 Slopes of Chisos Mountains east from Boot Spring Trail. Big Bend National Park, November 27, 2009
 East summit of Emory Peak in fog. Big Bend National Park, November 27, 2009
 Lower part of Juniper Canyon Trail. Big Bend National Park, Texas, November 23, 2007
 Ponds of Can Creek from an overlook of East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 2008
 Lower (flat) part of Juniper Canyon Trail. Big Bend National Park, Texas, November 23, 2007
 Weathered wood on Pinnacles Trail near Juniper Flat. Big Bend National Park, Texas, November 22, 2007
 Boot Rock, view from Juniper Canyon Trail. Big Bend National Park, Texas, November 23, 2007
 Fresno Circle campsite near Dodson Trail at evening. Big Bend National Park, Texas, November 23, 2007
 Northeast Rim, view from lower part of Juniper Canyon Trail. Big Bend National Park, Texas, November 23, 2007
 South Rim, view from Fresno Circle campsite near Dodson Trail. Big Bend National Park, Texas, November 23, 2007
 Crown Mountain, view from lower part of Juniper Canyon Trail. Big Bend National Park, Texas, November 23, 2007
 Elephant Tusk Rock, view from Fresno Spring near Dodson Trail. Big Bend National Park, Texas, November 24, 2007
 East summit of Emory Peak, with north summit visible in fog. Big Bend National Park, November 27, 2009
 Ruins of Dodson Ranch. Big Bend National Park, Texas, November 23, 2007
 Fresno Spring at evening. Big Bend National Park, Texas, November 23, 2007
 - North East Rim 11/29/97 evening (A trip to Big Bend Park, November 29 - 30, 1997)
 - North East Rim 11/29/97 evening (A trip to Big Bend Park, November 29 - 30, 1997)
 - North East Rim 11/29/97 evening (A trip to Big Bend Park, November 29 - 30, 1997)
 - North East Rim 11/29/97 evening (A trip to Big Bend Park, November 29 - 30, 1997)
 - North East Rim 11/29/97 evening (A trip to Big Bend Park, November 29 - 30, 1997)
 - North East Rim 11/29/97 evening (A trip to Big Bend Park, November 29 - 30, 1997)
 - North East Rim 11/29/97 evening (A trip to Big Bend Park, November 29 - 30, 1997)
 Camping on a small ridge near Juniper Canyon Trail south from Upper Juniper Spring. Big Bend National Park, Texas, November 22, 2007
 Prickly pears cactus on a small ridge near Juniper Canyon Trail south from Upper Juniper Spring. Big Bend National Park, Texas, November 22, 2007
 Chisos Mountains with snow, view from Castalon Highway. Big Bend National Park, Texas, November 25, 2007
 Overlook of a bend of Pilant Slough in Brazos Bend State Park. Needville, Texas, December 14, 2008
 - dayhike along North East Rim to Boot Springs (A trip to Big Bend Park, November 28, 1997, day and evening)
 - dayhike along North East Rim to Boot Springs (A trip to Big Bend Park, November 28, 1997, day and evening)
 - dayhike along North East Rim to Boot Springs (A trip to Big Bend Park, November 28, 1997, day and evening)
 - dayhike along North East Rim to Boot Springs (A trip to Big Bend Park, November 28, 1997, day and evening)
 - dayhike along North East Rim to Boot Springs (A trip to Big Bend Park, November 28, 1997, day and evening)
 - dayhike along North East Rim to Boot Springs (A trip to Big Bend Park, November 28, 1997, day and evening)
 - dayhike along North East Rim to Boot Springs (A trip to Big Bend Park, November 28, 1997, day and evening)
 - dayhike along North East Rim to Boot Springs (A trip to Big Bend Park, November 28, 1997, day and evening)
 - dayhike along North East Rim to Boot Springs (A trip to Big Bend Park, November 28, 1997, day and evening)
 - dayhike along North East Rim to Boot Springs (A trip to Big Bend Park, November 28, 1997, day and evening)
 - dayhike along North East Rim to Boot Springs (A trip to Big Bend Park, November 28, 1997, day and evening)
 - dayhike along North East Rim to Boot Springs (A trip to Big Bend Park, November 28, 1997, day and evening)
 Century plant and Elephant Tusk Mountain, view from South Rim. Big Bend National Park, Texas, November 22, 2007
 Echinocactus horizonthalonius (devil s head cactus, or horse crippler) with daggerlike spines on a small ridge near Juniper Canyon Trail south from Upper Juniper Spring. Big Bend National Park, Texas, November 22, 2007
 Chisos Mountains with traces of snow, view from Castalon Highway (Ross Maxwell Scenic Drive). Big Bend National Park, Texas, November 25, 2007
 Starting the second part of the trail along Nahal Tsafit Creek, 2.5 miles east from Arava junction. The Middle East, November 29, 2001
 Beginning of the second part of the trail along Nahal Tsafit Creek, 2.5 miles east from Arava junction. The Middle East, November 29, 2001
 - South East Rim, evening (A trip to Big Bend Park, November 28, 1997, day and evening)
 - South East Rim, evening (A trip to Big Bend Park, November 28, 1997, day and evening)
 - South East Rim, evening (A trip to Big Bend Park, November 28, 1997, day and evening)
 - South East Rim, evening (A trip to Big Bend Park, November 28, 1997, day and evening)
 Cypresses east from Trammel Crossing in Pedernales Falls State Park. Johnson City, Texas, November 10, 2007
 Switchbacks of Blue Creek Trail. Big Bend National Park, November 29, 2009
 Area of red rocks on Blue Creek Trail. Big Bend National Park, November 29, 2009
 A trail along ancient riverbed east from Avdat. The Middle East, November 17, 2002
 View from Blue Ridge Parkway near Peaks of Otter. Virginia, May 17, 2007
 Entangled dead trees from east side of Spillway Trail in Brazos Bend State Park. Needville, Texas, December 14, 2008
 A waterfall near Blue Ridge Parkway, near Mile 80. Peaks of Otter, Virginia, May 17, 2007
 Fruit of cholla cactus (cylindropuntia) on Blue Creek Trail. Big Bend National Park, November 29, 2009
 Fruits of Texas madrone (Arbutus xalapensis) on Blue Creek Trail. Big Bend National Park, November 29, 2009
 A bush in bloom near Blue Ridge Parkway, near Mile 80. Peaks of Otter, Virginia, May 17, 2007
 A trillium flower near Blue Ridge Parkway, at Mile 79. Peaks of Otter, Virginia, May 17, 2007
 One of eroded pinnacles of pink volcanic tuff on Blue Creek Trail. Big Bend National Park, November 29, 2009
 Desert landscape of Nahal Akev creek canyon, 2.5 miles east from Avdat. The Middle East, November 17, 2002
 Dyeball mushrooms (Pisolithus arhizus) on Caney Creek Trail (Little Lake Creek Loop Trail) east from Trailhead No. 4 in Sam Houston National Forest north from Montgomery. Texas, November 25, 2023
 Stones of the lower canyon of Nahal Tsafit Creek, 2 miles south-east from Arava junction. The Middle East, November 29, 2001
 Beginning of the lower canyon of Nahal Tsafit Creek, 2 miles south-east from Arava junction. The Middle East, November 29, 2001
 Eroded pinnacles of pink volcanic tuff looking like a miniature Bryce Canyon on Blue Creek Trail. Big Bend National Park, November 29, 2009
 Polypore mushrooms Trichaptum sector on a fallen oak on Caney Creek Trail (Little Lake Creek Loop Trail) east from Trailhead No. 4 in Sam Houston National Forest north from Montgomery. Texas, November 25, 2023
 Approaching narrowing of lower canyon of Nahal Tsafit Creek, 2 miles south-east from Arava junction. The Middle East, November 29, 2001
 Wide part of lower canyon of Nahal Tsafit Creek, 2 miles south-east from Arava junction. The Middle East, November 29, 2001
 Wide part of lower canyon of Nahal Tsafit Creek, 2 miles south-east from Arava junction. The Middle East, November 29, 2001
 Behind a fall at the beginning of the lower canyon of Nahal Tsafit Creek, 2 miles south-east from Arava junction. The Middle East, November 29, 2001
 A fall at the beginning of the lower canyon of Nahal Tsafit Creek, 2 miles south-east from Arava junction. The Middle East, November 29, 2001
 Limestones near narrowing of lower canyon of Nahal Tsafit Creek, 2 miles south-east from Arava junction. The Middle East, November 29, 2001
 Approaching narrowing of lower canyon of Nahal Tsafit Creek, 2 miles south-east from Arava junction. The Middle East, November 29, 2001
 Pale stagshorn fungus (Calocera pallidospathulata) on a wet pine log on Caney Creek Trail (Little Lake Creek Loop Trail) east from Trailhead No. 4 in Sam Houston National Forest north from Montgomery. Texas, November 25, 2023
 Dyeball mushrooms (Pisolithus arhizus) in cross section on Caney Creek Trail (Little Lake Creek Loop Trail) east from Trailhead No. 4 in Sam Houston National Forest north from Montgomery. Texas, November 25, 2023
 Underside of polypore mushrooms Trichaptum sector on a fallen oak on Caney Creek Trail (Little Lake Creek Loop Trail) east from Trailhead No. 4 in Sam Houston National Forest north from Montgomery. Texas, November 25, 2023
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