![](../../pictures/archives/compress/1999/108/jpeg/13t.jpg) A.S. on Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/23t.jpg) View from Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/000t.jpg) Rough Trail to Gray s Arch. Red River Gorge, Kentucky, November 5, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/00t.jpg) Rough Trail to Gray s Arch. Red River Gorge, Kentucky, November 5, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/16t.jpg) A tree with very big leaves on Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/108/jpeg/10t.jpg) A small maple on Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/108/jpeg/12t.jpg) Pine forest on Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/108/jpeg/07t.jpg) Multicolor maple leaves on Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/12t.jpg) Blueberry and rhododendron bushes on Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/108/jpeg/08t.jpg) Rhododendron in a canyon, view from Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/108/jpeg/02t.jpg) Erosion of a limestone rock at Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/108/jpeg/01t.jpg) Erosion forms of limestone in a rock shelter at Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/24t.jpg) Erosion forms of limestone on a rock shelter at Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/108/jpeg/03t.jpg) Tree roots and erosion forms on a limestone rock at Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/16t.jpg) A.S. on Buck Trail. Red River Gorge, Kentucky, November 7, 1999.
![](../../pictures/archives/compress/1999/108/jpeg/17t.jpg) Sheltowee Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/12t.jpg) Buck Trail. Red River Gorge, Kentucky, November 7, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/15t.jpg) Forest near Buck Trail. Red River Gorge, Kentucky, November 7, 1999.
![](../../pictures/archives/compress/1999/108/jpeg/24t.jpg) Sheltowee Trail near Chimney Top Rock. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/13t.jpg) Flowers on a stone at Buck Trail. Red River Gorge, Kentucky, November 7, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/14t.jpg) Mushrooms in moss at Buck Trail. Red River Gorge, Kentucky, November 7, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/17t.jpg) View from Pinch Em Tight Trail. Red River Gorge, Kentucky, November 7, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/18t.jpg) Oak forest near Pinch Em Tight Trail. Red River Gorge, Kentucky, November 7, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/19t.jpg) View from Pinch Em Tight Trail. Red River Gorge, Kentucky, November 7, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/20t.jpg) View from Pinch Em Tight Trail. Red River Gorge, Kentucky, November 7, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/21t.jpg) View from Pinch Em Tight Trail. Red River Gorge, Kentucky, November 7, 1999.
![](../../pictures/archives/compress/1999/108/jpeg/18t.jpg) Bottom of a canyon, view from Sheltowee Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/22t.jpg) View of a canyon from Pinch Em Tight Trail. Red River Gorge, Kentucky, November 7, 1999.
![](../../pictures/archives/compress/1999/108/jpeg/23t.jpg) A fungus (?) on a birch, Sheltowee Trail near Chimney Top Rock. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/03t.jpg) Bamboo brushes on the bottom of a canyon near Sheltowee Trail. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/07t.jpg) Limestone erosion forms at Koomer Ridge Trail. Red River Gorge, Kentucky, November 7, 1999.
![](../../pictures/archives/compress/1999/108/jpeg/21t.jpg) Limestone rocks, view from Sheltowee Trail near Chimney Top Rock. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/08t.jpg) Mushroom-like limestone erosion forms at Koomer Ridge Trail. Red River Gorge, Kentucky, November 7, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/09t.jpg) Creeping fern among dry leaves and needles on Koomer Ridge Trail. Red River Gorge, Kentucky, November 7, 1999.
![](../../pictures/archives/compress/1999/109/jpeg/00t.jpg) View of canyon walls at evening from Sheltowee Trail near Chimney Top Rock. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/20t.jpg) Forest below Gray s Arch. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/10t.jpg) View from the top of Gray s Arch at morning. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/15t.jpg) Erosion of limestone near Gray s Arch. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/09t.jpg) View from the top of Gray s Arch at morning. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/08t.jpg) Forest near Gray s Arch at morning. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/06t.jpg) Forest near Gray s Arch at morning. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/04t.jpg) Forest near Gray s Arch at morning. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/07t.jpg) Forest near Gray s Arch at morning. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/19t.jpg) Rhododendron, fir and maples near Gray s Arch. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/22t.jpg) Gray s Arch with rhododendron on foreground. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/18t.jpg) Gray s Arch, view from rock shelters. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/17t.jpg) Gray s Arch, view from rock shelters. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/107/jpeg/11t.jpg) View of rock shelters from the top of Gray s Arch. Red River Gorge, Kentucky, November 6, 1999.
![](../../pictures/archives/compress/1999/106/jpeg/23t.jpg) Tobacco farm near Slade, Kentucky, November 5, 1999.
![](../../pictures/archives/compress/1999/110/jpeg/03t.jpg) View of Wabash River from a trail to Fort Ouiatenon. Indiana, November 13, 1999
![](../../pictures/archives/compress/2009/788/jpeg/01t.jpg) White berries of rough-leaf dogwood (Cornus drummondii) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 23, 2009
![](../../pictures/archives/compress/1999/90/jpeg/13t.jpg) Potholes Park, Fall Creek Gorge. The trip was organized by Purdue University International Center. Near Pine Village, Indiana, June 5, 1999.
![](../../pictures/archives/compress/2017/2193/jpeg/10t.jpg) Unknown gilled mushrooms on wood chips under utility poles in Lemontree Park. College Station, Texas, November 4, 2017
![](../../pictures/archives/compress/2017/2193/jpeg/11t.jpg) Close up of unknown gilled mushrooms on wood chips under utility poles in Lemontree Park. College Station, Texas, November 4, 2017
![](../../pictures/archives/compress/1999/90/jpeg/16t.jpg) Overcoming a tub in a creek in Potholes Park (Fall Creek Gorge) by an international student of Purdue University. Near Pine Village, Indiana, June 5, 1999.
![](../../pictures/archives/compress/1999/90/jpeg/14t.jpg) Inspecting a creek in Potholes Park (Fall Creek Gorge) by international students of Purdue University. Near Pine Village, Indiana, June 5, 1999.
![](../../pictures/archives/compress/2005/473/jpeg/09t.jpg) Forest of Enfield gorge, from Rim Trail, in Robert H. Treman State Park. Ithaca, New York, November 2, 2005
![](../../pictures/archives/compress/1999/90/jpeg/18t.jpg) 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.
![](../../pictures/archives/compress/2005/476/jpeg/21t.jpg) Fallen sycamore tree in snow near Gorge Trail in Taughannock Falls State Park. New York, November 23, 2005
![](../../pictures/archives/compress/2005/473/jpeg/08t.jpg) Fall colors of Enfield gorge, view from Rim Trail, in Robert H. Treman State Park. Ithaca, New York, November 2, 2005
![](../../pictures/archives/compress/2001/170/jpeg/31t.jpg) Entrance to Nahal Tseelim River Gorge, 2 miles north from Masada. The Middle East, January 20, 2001
![](../../pictures/archives/compress/2005/473/jpeg/11t.jpg) Fall colors of Enfield gorge, zoomed, view from Rim Trail, in Robert H. Treman State Park. Ithaca, New York, November 2, 2005
![](../../pictures/archives/compress/2003/363/jpeg/19t.jpg) Autumn olive berries (Elaeagnus umbellata) on King Philip s Trail in Blackstone River and Canal Heritage State Park. Uxbridge, Massachusetts, October 30, 2003
![](../../pictures/archives/compress/1999/97/jpeg/19t.jpg) Drying forest at Heritage Trail along Wabash River north from Lafayette. Indiana, September 11, 1999.
![](../../pictures/archives/compress/2020/2822/jpeg/05t.jpg) Rough bark of winged elm (Ulmus alata) on Post Oak Trail in Lick Creek Park. College Station, Texas, November 27, 2020
![](../../pictures/archives/compress/1999/106/jpeg/09t.jpg) A trail along Wabash River at Ross Hills Park 5 miles west from Lafayette. Indiana, October 30, 1999.
![](../../pictures/archives/compress/1999/110/jpeg/11t.jpg) Wabash Street Bridge across Chicago River. Sun-Times Daily News, Wrigley and Equitable Buildings are behind the bridge. Chicago, November 22, 1999
![](../../pictures/archives/compress/2001/170/jpeg/29t.jpg) Entrance to Nahal Tseelim River Gorge from Dead Sea, 2 miles north from Masada, view from a parking place. The Middle East, January 20, 2001
![](../../pictures/archives/compress/2001/170/jpeg/30t.jpg) A.S. at entrance to Nahal Tseelim River Gorge from Dead Sea, 2 miles north from Masada, view from a parking place. The Middle East, January 20, 2001
![](../../pictures/archives/compress/2020/2778/jpeg/09t.jpg) Gymnopus(?) and some unknown gilled mushroom on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, September 18, 2020
![](../../pictures/archives/compress/1999/103/jpeg/01t.jpg) Kathy Trail along Missouri River near Columbia, Missouri. October 23, 1999.
![](../../pictures/archives/compress/1999/103/jpeg/04t.jpg) Kathy Trail along Missouri River near Columbia, Missouri. October 23, 1999.
![](../../pictures/archives/compress/1999/102/jpeg/24t.jpg) Rocks along Missouri River, view from Kathy Trail near Columbia, Missouri. October 23, 1999.
![](../../pictures/archives/compress/1999/102/jpeg/25t.jpg) Rocks and bushes along Missouri River, view from Kathy Trail near Columbia, Missouri. October 23, 1999.
![](../../pictures/archives/compress/1999/103/jpeg/02t.jpg) Bushes on rocks along Missouri River, view from Kathy Trail near Columbia, Missouri. October 23, 1999.
![](../../pictures/archives/compress/2005/476/jpeg/23t.jpg) A wall of the gorge in Taughannock Falls State Park. New York, November 23, 2005
![](../../pictures/archives/compress/1999/110/jpeg/12t.jpg) State Street Bridge across Chicago River. City Garage (?) and Blue Cross - Blue Shield Building are behind the bridge. Chicago, November 22, 1999
![](../../pictures/archives/compress/2005/473/jpeg/07t.jpg) Cliffs of Enfield gorge in Robert H. Treman State Park. Ithaca, New York, November 2, 2005
![](../../pictures/archives/compress/2012/1087/jpeg/17t.jpg) Red berries of Fly honeysuckle (Lonicera xylosteum) near Sablinka River in Sablino, 30 miles south from Saint Petersburg. Russia, July 29, 2012
![](../../pictures/archives/compress/2002/260/jpeg/27t.jpg) View of unknown person from a bus during traffic jam. Nazareth, the Middle East, March 16, 2002
![](../../pictures/archives/compress/2012/1087/jpeg/15t.jpg) Red berries of Alpine Currant (Ribes alpinum) near Sablinka River in Sablino, 30 miles south from Saint Petersburg. Russia, July 29, 2012
![](../../pictures/archives/compress/2008/686/jpeg/14t.jpg) Rose-pink berries of coralberry (Indian currant, Symphoricarpos orbiculatus) on Iron Bridge Trail in Lick Creek Park. College Station, Texas, November 12, 2008
![](../../pictures/archives/compress/1999/98/jpeg/12t.jpg) Tippecanoe River (after a drought) north from Lafayette, Indiana. September 18, 1999.
![](../../pictures/archives/compress/1999/79/jpeg/00t.jpg) Moyka River south from Summer Garden. Saint Petersburg, Russia, April 13, 1999.
![](../../pictures/archives/compress/1999/97/jpeg/20t.jpg) Davis Ferry Bridge across Wabash River north from Lafayette. Indiana, September 11, 1999.
![](../../pictures/archives/compress/1999/110/jpeg/21t.jpg) Hedge apples (osage orange) among first year garlic mustard leaves on a trail to Battle Ground. Indiana, November 26, 1999
![](../../pictures/archives/compress/1999/98/jpeg/11t.jpg) Tippecanoe River north from Lafayette, Indiana. Shallow places appeared after a drought. September 18, 1999.
![](../../pictures/archives/compress/1999/83/jpeg/08t.jpg) Smol nyi Cathedral and monastery at a bend of Neva River in Saint Petersburg, Russia, April 21, 1999.
![](../../pictures/archives/compress/1999/98/jpeg/08t.jpg) Canoe trip on Tippecanoe River with international students of Purdue University. Indiana, September 18, 1999.
![](../../pictures/archives/compress/1999/93/jpeg/15t.jpg) View of Charles River and downtown Boston from the top of Bunker Hill Monument. Massachusetts, July 31, 1999.
![](../../pictures/archives/compress/1999/96/jpeg/07t.jpg) View of Back Bay, Charles River and Cambridge from Hancock Tower in Boston. Massachusetts, August 3, 1999.
![](../../pictures/archives/compress/1999/95/jpeg/16t.jpg) View of Longfellow Bridge across Charles River from Hancock Tower in Boston. Massachusetts, August 3, 1999.
![](../../pictures/archives/compress/2024/3640/jpeg/12t.jpg) Crustose lichens of a rough surface of a tombstone both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
![](../../pictures/archives/compress/2001/229/jpeg/07t.jpg) Unknown person at Itzhak Rager Street near Kanyon Hanegev supermarket. Beer-Sheva, the Middle East, September 21, 2001
![](../../pictures/archives/compress/1999/79/jpeg/11t.jpg) Moyka River and consulates of South-African Republic and France. Saint Petersburg, Russia, April 13, 1999.
![](../../pictures/archives/compress/1999/83/jpeg/18t.jpg) A sphinx on Egypt Bridge across Fontanka River at Lermontovsky Prospect. Saint Petersburg, Russia, April 22, 1999.
![](../../pictures/archives/compress/1999/79/jpeg/03t.jpg) Gulls on an embankment of Moyka River opposite to Summer Garden. Saint Petersburg, Russia, April 13, 1999.
![](../../pictures/archives/compress/1999/106/jpeg/08t.jpg) A meadow near Wabash River at Ross Hills Park 5 miles west from Lafayette. Indiana, October 30, 1999.
![](../../pictures/archives/compress/1999/99/jpeg/17t.jpg) Forest along Wabash River in Ross Hills Park, 6 miles west from Lafayette, Indiana, September 25, 1999.
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