 Huntsville Unit of Texas State Penitentiary, "The Walls" prison. Huntsville, Texas, December 20, 2009
 Huntsville Unit of Texas State Penitentiary "The Walls" (established 1849) at morning. A clock above the main entrance to the prison is a symbol of time which serves as a reminder to those inside. Huntsville, Texas, December 18, 2008
 Model of Walls Unit of Texas State Penitentiary in Prison Museum. Huntsville, Texas, December 18, 2010
 Christmas decoration on tall brick security walls of Huntsville prison "The Walls". Huntsville, Texas, December 20, 2009
 "Merry Christmas to All" decoration on the 32 feet tall brick security wall surrounding "The Walls" prison (Huntsville TDCJ Unit), with a memorial historical plaque in foreground. Huntsville, Texas, December 18, 2008
 Walls Unit prison. Huntsville, Texas, February 23, 2008
 Walls Unit prison. Huntsville, Texas, December 29, 2011
 Old Administration Building of Walls Unit Prison. Huntsville, Texas, December 29, 2011
 Old Administration Building of Walls Unit Prison. Huntsville, Texas, March 23, 2008
 Walls Unit of prison system, Main Building. Huntsville, Texas, March 23, 2008
 Walls Unit of prison system, main entrance. Huntsville, Texas, June 29, 2008
 Model of Walls Unit in Prison Museum, with Main Building in the center, Infirmary to the left and Dining to the right. Huntsville, Texas, February 23, 2008
 Memorial plaque of Texas Historical Commission in front of Walls Unit of TDCJ prison system. Huntsville, Texas, December 29, 2011
 Caterpillar in Huntsville State Park on Chinquapin Trail. Texas, October 31, 2009
 Tachinid parasitic fly (Archytas) on Chinquapin Trail near a dam in Huntsville State Park. Texas, October 10, 2009
 Orange berries of greenbrier (smilax) in Huntsville State Park on Chinquapin Trail. Texas, October 31, 2009
 Earthstar mushroom (Geastrum triplex) on Chinquapin Trail in Huntsville State Park. Texas, October 10, 2009
 Cardinal flower (Lobelia cardinalis) in Huntsville State Park on Chinquapin Trail. Texas, October 10, 2009
 Close up of gulf fritillary butterfly on a dam on Chinquapin Trail in Huntsville State Park. Texas, October 10, 2009
 Fly agaric mushroom (Amanita muscaria) in Huntsville State Park on Chinquapin Trail. Texas, October 31, 2009
 Jelly fungus (Tremella fuciformis) mushrooms on a log on Chinquapin Trail near a dam in Huntsville State Park. Texas, October 10, 2009
 Bright red fruits of dogwood (Cornus florida) on Chinquapin Trail in Huntsville State Park. Texas, October 10, 2009
 A hiker (D. Y.) near Alligator Branch of Lake Raven on Chinquapin Trail in Huntsville State Park. Texas, October 10, 2009
 Stink bug nymph (Acrosternum hilare) on a backpack on Chinquapin Trail in Huntsville State Park. Texas, October 10, 2009
 Gulf fritillary butterfly on woolly croton on a dam on Chinquapin Trail in Huntsville State Park. Texas, October 10, 2009
 Ripening fruits of dogwood (Cornus florida) on Chinquapin Trail in Huntsville State Park. Texas, October 10, 2009
 Gulf fritillary caterpillar eating passion flower on a dam on Chinquapin Trail in Huntsville State Park. Texas, October 10, 2009
 Orange jelly fungus (Dacryopinax spathularia mushrooms) on a log on a dam on Chinquapin Trail in Huntsville State Park. Texas, October 10, 2009
 Memorial plaque of Texas Historical Commission in front of 32 feet high and 2-3 feet thick brick security wall (1942) surrounding Walls Unit of TDCJ prison system. Huntsville, Texas, June 29, 2008
 Dacryopinax spathularia mushrooms (jelly fungus) fruiting through cracks in the wood on Chinquapin Trail in Huntsville State Park. Texas, October 10, 2009
 Hairy green caterpillar in Huntsville State Park. Huntsville, Texas, April 22, 2012
 TDCJ Captain Joe Byrd (Peckerwood Hill) Cemetery. Huntsville, Texas, October 31, 2009
 Lake Raven in fog in Huntsville State Park. Texas, December 20, 2009
 Lake Raven in Huntsville State Park. Texas, December 20, 2009
 Crosses of TDCJ Captain Joe Byrd (Peckerwood Hill) Cemetery. Huntsville, Texas, October 31, 2009
 Lake Raven in mist in Huntsville State Park. Texas, December 20, 2009
 Rows of tombs of TDCJ Captain Joe Byrd (Peckerwood Hill) Cemetery. Huntsville, Texas, October 31, 2009
 Rows of crosses of TDCJ Captain Joe Byrd (Peckerwood Hill) Cemetery. Huntsville, Texas, October 31, 2009
 Crosses on tombs of TDCJ Captain Joe Byrd (Peckerwood Hill) Cemetery. Huntsville, Texas, October 31, 2009
 Boat ramp in Lake Raven in Huntsville State Park. Texas, December 20, 2009
 Cardinal flower (Lobelia cardinalis) on Caney Creek Trail in Sam Houston National Forest, near Huntsville. Texas, October 18, 2009
 Boardwalk of Chinquapin Trail through Alligator Branch of Lake Raven in Huntsville State Park. Texas, December 20, 2009
 Nodding Ladies-Tresses Orchid (Spiranthes cernua) on Caney Creek Trail in Sam Houston National Forest, near Huntsville. Texas, October 18, 2009
 Dam of Lake Raven in Huntsville State Park. Texas, October 30, 2020
 Red berries of Carolina moonseed vine (Cocculus carolinus, coralbeads) on Caney Creek Trail in Sam Houston National Forest, near Huntsville. Texas, October 18, 2009
 Mushrooms Hohenbuehelia angustata on an oak log in Huntsville State Park. Texas, October 27, 2018
 Leucopaxillus laterarius mushrooms in Huntsville State Park. Texas, October 27, 2018
 Coral mushrooms Ramaria stricta(?) in Huntsville State Park. Texas, October 27, 2018
 Maze polypore mushroom (Daedaleopsis) in Huntsville State Park. Texas, October 27, 2018
 Young mushrooms Leucopaxillus laterarius in Huntsville State Park. Texas, October 27, 2018
 Tricholomatineae mushrooms in a pine forest in Huntsville State Park. Texas, October 27, 2018
 Pine trees along park road in Huntsville State Park. Texas, December 20, 2009
 Wood hedgehog mushrooms (Hydnum repandum) in Huntsville State Park. Texas, October 27, 2018
 Bitter oyster mushrooms (Panellus stipticus) in Huntsville State Park. Texas, October 27, 2018
 Alligator Branch near Huntsville State Park from Lone Star Trail. Texas, October 16, 2010
 Crust fungus Xylobolus subpileatus on a fallen oak in Huntsville State Park. Texas, October 27, 2018
 Wood pinkgill mushrooms (Entoloma rhodopolium) in Huntsville State Park. Texas, October 27, 2018
 Cap of some white Amanita mushroom on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Brown coral mushrooms Ramaria stricta(?) in Huntsville State Park. Texas, October 27, 2018
 Yellow webcap mushrooms Cortinarius lewisii in Huntsville State Park. Texas, October 27, 2018
 Lake Raven and CCC lodge from a dam on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Sulphur tuft mushrooms (Hypholoma fasciculare) in Huntsville State Park. Texas, October 27, 2018
 Pine sap on a burned tree bark on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Resin exuded from a pine tree on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Crust fungus Stereum(?) under a rotting log on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Amanita sect. Caesareae and Leucopaxillus laterarius mushrooms in Huntsville State Park. Texas, October 27, 2018
 Some black dot fungus on bark of a fallen oak on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Gills of a wood pinkgill mushroom (Entoloma rhodopolium) in Huntsville State Park. Texas, October 27, 2018
 Underside of some white Amanita mushroom on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Byssomerulius incarnatus (Phlebia incarnata) mushrooms together with Stereum on an oak log in Huntsville State Park. Texas, October 27, 2018
 Dissected yellow webcap mushrooms Cortinarius lewisii in Huntsville State Park. Texas, October 27, 2018
 Coral mushrooms Ramaria stricta(?) in a pine forest in Huntsville State Park. Texas, October 27, 2018
 Gills of some white Amanita mushroom on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Cinnabar-red chanterelle mushrooms (Cantharellus cinnabarinus or may be C. texensis) in Huntsville State Park. Texas, October 27, 2018
 Pale wood pinkgill mushrooms (Entoloma rhodopolium) in Huntsville State Park. Texas, October 27, 2018
 Close up of crust fungus Xylobolus subpileatus on a fallen oak in Huntsville State Park. Texas, October 27, 2018
 Cross section of some white Amanita mushroom on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Resupinate polypore mushroom Antrodia(?) on a fallen oak on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Jelly fungus Tremella fuciformis on a wild grape vine in Huntsville State Park. Texas, October 27, 2018
 Scales of a large dead timber rattlesnake on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Brown caps of wood pinkgill mushrooms (Entoloma rhodopolium) in Huntsville State Park. Texas, October 27, 2018
 Wood hedgehog mushrooms (Hydnum repandum) under elms and pines in Huntsville State Park. Texas, October 27, 2018
 Cloud ear jelly mushrooms (Auricularia nigricans) on a log on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Side view of some white Amanita mushroom on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Mature little nest polypore mushrooms (Poronidulus conchifer) fallen from an oak in Huntsville State Park. Texas, October 27, 2018
 Teeth of hydnoid mushroom Steccherinum oreophilum on an oak log on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Old wooden bridge over tributary of Alligator Branch of Lake Raven in Huntsville State Park. Texas, October 16, 2010
 Black spots from a fungus under bark on a fallen oak on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Close-up of black fungus spots on a fallen oak on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Hydnoid mushroom Steccherinum oreophilum on a cut surface of an oak log on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Close-up of hydnoid mushroom Steccherinum oreophilum on a cut surface of an oak log on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Decaying wooden bridge over tributary of Alligator Branch of Lake Raven in Huntsville State Park. Texas, October 16, 2010
 Close-up of teeth of hydnoid mushroom Steccherinum oreophilum on an oak log on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Brown pores of a polypore mushroom Trichaptum sector on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Hairy cap of hydnoid mushroom Steccherinum oreophilum on a cut surface of an oak log on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Texture of resupinate polypore mushroom Antrodia(?) on a fallen oak on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Details of hydnoid mushroom Steccherinum oreophilum on a cut surface of an oak log on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Resupinate form of hydnoid mushroom Steccherinum oreophilum on an oak log on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
 Young cloud ear jelly mushrooms (Auricularia nigricans) on a log on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020
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