![](../../pictures/archives/compress/2019/2493/jpeg/09t.jpg) Multicolored clay layers in Popovka river canyon in Pyazelevo near Pavlovsk, south from Saint Petersburg. Russia, May 10, 2019
![](../../pictures/archives/compress/2019/2493/jpeg/11t.jpg) Orange and red clay layers in Popovka river canyon in Pyazelevo near Pavlovsk, south from Saint Petersburg. Russia, May 10, 2019
![](../../pictures/archives/compress/2019/2493/jpeg/13t.jpg) Brittlestem mushrooms Psathyrella clivensis(?) at the bottom of Popovka river canyon in Pyazelevo near Pavlovsk, south from Saint Petersburg. Russia, May 10, 2019
![](../../pictures/archives/compress/2019/2493/jpeg/12t.jpg) Brown brittlestem mushrooms Psathyrella clivensis(?) at the bottom of Popovka river canyon in Pyazelevo near Pavlovsk, south from Saint Petersburg. Russia, May 10, 2019
![](../../pictures/archives/compress/2019/2493/jpeg/08t.jpg) Flowers of marsh marigold (kingcup, Caltha palustris, Russian name Kaluzhnitsa) in Popovka river canyon in Pyazelevo near Pavlovsk, south from Saint Petersburg. Russia, May 10, 2019
![](../../pictures/archives/compress/2019/2493/jpeg/04t.jpg) Alternate-leaved Golden Saxifrage (Chrysosplenium alternifolium, Russian name Selezionochnik) in Popovka river canyon in Pyazelevo near Pavlovsk, south from Saint Petersburg. Russia, May 10, 2019
![](../../pictures/archives/compress/2019/2493/jpeg/07t.jpg) Back lit Alternate-leaved Golden Saxifrage (Chrysosplenium alternifolium, Russian name Selezionochnik) in Popovka river canyon in Pyazelevo near Pavlovsk, south from Saint Petersburg. Russia, May 10, 2019
![](../../pictures/archives/compress/2019/2493/jpeg/06t.jpg) Close up of Alternate-leaved Golden Saxifrage (Chrysosplenium alternifolium, Russian name Selezionochnik) in Popovka river canyon in Pyazelevo near Pavlovsk, south from Saint Petersburg. Russia, May 10, 2019
![](../../pictures/archives/compress/2019/2493/jpeg/05t.jpg) Black hoverfly Cheilosia on a yellow flower of Lesser celandine (Ranunculus ficaria, Russian name Chistyak) in Popovka river canyon in Pyazelevo near Pavlovsk, south from Saint Petersburg. Russia, May 10, 2019
![](../../pictures/archives/compress/2019/2493/jpeg/03t.jpg) Yellow flower of marsh marigold (kingcup, Caltha palustris, Russian name Kaluzhnitsa) with a black hoverfly Cheilosia in Popovka river canyon in Pyazelevo near Pavlovsk, south from Saint Petersburg. Russia, May 10, 2019
![](../../pictures/archives/compress/2019/2493/jpeg/02t.jpg) Black hoverfly Cheilosia on a yellow flower of marsh marigold (kingcup, Caltha palustris, Russian name Kaluzhnitsa) in Popovka river canyon in Pyazelevo near Pavlovsk, south from Saint Petersburg. Russia, May 10, 2019
![](../../pictures/archives/compress/2019/2493/jpeg/01t.jpg) Valley of Popovka River near Grafskaya Road in area of Pyazelevo near Pavlovsk, south from Saint Petersburg. Russia, May 10, 2019
![](../../pictures/archives/compress/2011/945/jpeg/08t.jpg) Canyon of Tosna River near Sablino, south from Saint Petersburg. Russia, May 21, 2011
![](../../pictures/archives/compress/2019/2499/jpeg/06t.jpg) Slavianka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2019/2500/jpeg/10t.jpg) An oak near Slavianka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2019/2500/jpeg/04t.jpg) Valley of Slavianka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2019/2499/jpeg/03t.jpg) Valley of Slavianka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2019/2500/jpeg/11t.jpg) Oak tree near Slavianka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2019/2500/jpeg/12t.jpg) Oak tree in Valley of Slavianka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2019/2500/jpeg/02t.jpg) Viskontiev Bridge and Slavianka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2019/2499/jpeg/09t.jpg) Slavianka River near Black Bridge in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2019/2500/jpeg/09t.jpg) End of World Pillar from Slavianka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2019/2500/jpeg/08t.jpg) Valley of Slavianka River near Pilbashenny Bridge in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2019/2500/jpeg/16t.jpg) Krasnaya Dolina (Red Valley) near Slavianka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2019/2500/jpeg/13t.jpg) Slavianka River near Novaya Sylvia Bridge in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2019/2500/jpeg/14t.jpg) Valley of Slavianka River near Novaya Sylvia Bridge in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2019/2500/jpeg/06t.jpg) Valley of Slavianka River from observation site of Novaya Sylvia in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2019/2499/jpeg/13t.jpg) South corner of Rozovopavilionny Pond in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019
![](../../pictures/archives/compress/2011/948/jpeg/06t.jpg) Slavyanka River in Pavlovsk Park, south from Saint Petersburg. Russia, May 24, 2011
![](../../pictures/archives/compress/2016/1794/jpeg/17t.jpg) Exposed clay layers on limestone cliffs in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
![](../../pictures/archives/compress/2011/948/jpeg/20t.jpg) Banks of Slavyanka River in Pavlovsk Park, south from Saint Petersburg. Russia, May 24, 2011
![](../../pictures/archives/compress/2011/948/jpeg/13t.jpg) Slavyanka River near Pil Tower in Pavlovsk Park, south from Saint Petersburg. Russia, May 24, 2011
![](../../pictures/archives/compress/2011/948/jpeg/07t.jpg) Meadows along Slavyanka River in Pavlovsk Park, south from Saint Petersburg. Russia, May 24, 2011
![](../../pictures/archives/compress/2011/948/jpeg/08t.jpg) Area near Slavyanka River in Pavlovsk Park, south from Saint Petersburg. Russia, May 24, 2011
![](../../pictures/archives/compress/2012/1082/jpeg/18t.jpg) Slavianka River in Pavlovsk Park. South from Saint Petersburg, Russia, July 21, 2012
![](../../pictures/archives/compress/2011/948/jpeg/18t.jpg) Meadows along Slavyanka River in Pavlovsk Park, south from Saint Petersburg. Russia, May 24, 2011
![](../../pictures/archives/compress/2009/701/jpeg/04t.jpg) Petrified wood logs in layers of clay on a shore of Lake Somerville, north from Big Creek Park. Texas, January 17, 2009
![](../../pictures/archives/compress/2011/948/jpeg/10t.jpg) Round Pond of Slavyanka River in Pavlovsk Park, south from Saint Petersburg. Russia, May 24, 2011
![](../../pictures/archives/compress/2012/1082/jpeg/17t.jpg) Slavianka River and Pil Tower in Pavlovsk Park. South from Saint Petersburg, Russia, July 21, 2012
![](../../pictures/archives/compress/2011/948/jpeg/12t.jpg) Viskontiev Bridge of Slavyanka River in Pavlovsk Park, south from Saint Petersburg. Russia, May 24, 2011
![](../../pictures/archives/compress/2011/948/jpeg/15t.jpg) Slavyanka River from Novosilviyskiy Bridge in Pavlovsk Park, south from Saint Petersburg. Russia, May 24, 2011
![](../../pictures/archives/compress/2011/948/jpeg/16t.jpg) Slavyanka River near Tiarlevo from Novosilviyskiy Bridge in Pavlovsk Park, south from Saint Petersburg. Russia, May 24, 2011
![](../../pictures/archives/compress/2012/1082/jpeg/19t.jpg) Stone ruins near Slavianka River in Pavlovsk Park near Tiarlevo. South from Saint Petersburg, Russia, July 21, 2012
![](../../pictures/archives/compress/2010/871/jpeg/03t.jpg) Novosilviysky stone bridge of Slavianka River in Pavlovsk Park, south from Saint Petersburg. Russia, June 23, 2010
![](../../pictures/archives/compress/2012/1082/jpeg/20t.jpg) Green fruits of baneberry (Actaea Spicata, Russian name Voronets) in Pavlovsk Park. South from Saint Petersburg, Russia, July 21, 2012
![](../../pictures/archives/compress/2010/870/jpeg/08t.jpg) Slavianka River and Khram Druzhby (Friendship Temple) in Pavlovsk Park, south from Saint Petersburg, Russia, June 23, 2010
![](../../pictures/archives/compress/2024/3636/jpeg/18t.jpg) Layers of clay and gravel on a shore of the lake in Birch Creek Unit of Lake Somerville State Park, Texas, October 26, 2024
![](../../pictures/archives/compress/2024/3636/jpeg/17t.jpg) Rusty silt and clay layers on a shore of the lake in Birch Creek Unit of Lake Somerville State Park, Texas, October 26, 2024
![](../../pictures/archives/compress/2016/1820/jpeg/02t.jpg) Green Woman Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 6, 2016
![](../../pictures/archives/compress/2014/1417/jpeg/09t.jpg) Alley of Green Woman in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 30, 2014
![](../../pictures/archives/compress/2016/1820/jpeg/03t.jpg) Trees of Green Woman Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 6, 2016
![](../../pictures/archives/compress/2013/1250/jpeg/13t.jpg) Green Woman Alley in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 2, 2013
![](../../pictures/archives/compress/2015/1651/jpeg/20t.jpg) Green Woman Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, September 18, 2015
![](../../pictures/archives/compress/2015/1716/jpeg/01t.jpg) Green Woman Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, December 31, 2015
![](../../pictures/archives/compress/2014/1417/jpeg/23t.jpg) Green leaves near Angliyskaya Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 30, 2014
![](../../pictures/archives/compress/2015/1663/jpeg/05t.jpg) Green Woman Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, September 26, 2015
![](../../pictures/archives/compress/2014/1521/jpeg/06t.jpg) Snowy Green Woman Alley in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, December 28, 2014
![](../../pictures/archives/compress/2015/1663/jpeg/03t.jpg) Birches near Green Woman Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, September 26, 2015
![](../../pictures/archives/compress/2015/1600/jpeg/07t.jpg) Green meadow in Tiarlevo near Novosilviyskiy Bridge in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 18, 2015
![](../../pictures/archives/compress/2016/1820/jpeg/01t.jpg) Round Hall and Green Woman Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 6, 2016
![](../../pictures/archives/compress/2015/1716/jpeg/02t.jpg) People on Green Woman Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, December 31, 2015
![](../../pictures/archives/compress/2015/1663/jpeg/02t.jpg) View from Green Woman Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, September 26, 2015
![](../../pictures/archives/compress/2015/1663/jpeg/01t.jpg) Oaks of Green Woman Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, September 26, 2015
![](../../pictures/archives/compress/2015/1716/jpeg/19t.jpg) Green fern under snow in Old Sylvia in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, December 31, 2015
![](../../pictures/archives/compress/2015/1663/jpeg/04t.jpg) East end of Green Woman Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, September 26, 2015
![](../../pictures/archives/compress/2015/1651/jpeg/21t.jpg) Oaks of Green Woman Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, September 18, 2015
![](../../pictures/archives/compress/2015/1716/jpeg/03t.jpg) Trees of Green Woman Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, December 31, 2015
![](../../pictures/archives/compress/2014/1521/jpeg/28t.jpg) Trees of Green Woman Alley in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, December 28, 2014
![](../../pictures/archives/compress/2015/1651/jpeg/18t.jpg) Forest near Green Woman Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, September 18, 2015
![](../../pictures/archives/compress/2017/2048/jpeg/23t.jpg) Valley of Slavianka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 24, 2017
![](../../pictures/archives/compress/2018/2330/jpeg/02t.jpg) Slavianka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, August 20, 2018
![](../../pictures/archives/compress/2016/1820/jpeg/09t.jpg) Willow near Slavianka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 6, 2016
![](../../pictures/archives/compress/2016/1820/jpeg/20t.jpg) Trees across Slavyanka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 6, 2016
![](../../pictures/archives/compress/2017/2048/jpeg/24t.jpg) Forest near Slavianka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 24, 2017
![](../../pictures/archives/compress/2017/2048/jpeg/18t.jpg) View of Slavianka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 24, 2017
![](../../pictures/archives/compress/2017/2049/jpeg/02t.jpg) Valley of Slavyanka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 24, 2017
![](../../pictures/archives/compress/2017/2048/jpeg/17t.jpg) Area of Slavianka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 24, 2017
![](../../pictures/archives/compress/2017/2048/jpeg/25t.jpg) Trees near Slavianka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 24, 2017
![](../../pictures/archives/compress/2015/1599/jpeg/09t.jpg) Valley of Slavianka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 18, 2015
![](../../pictures/archives/compress/2013/1269/jpeg/04t.jpg) Oak near Slavianka River in fog in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 17, 2013
![](../../pictures/archives/compress/2013/1269/jpeg/03t.jpg) Oak near Slavianka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 17, 2013
![](../../pictures/archives/compress/2013/1269/jpeg/02t.jpg) Slavianka River in fog in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 17, 2013
![](../../pictures/archives/compress/2021/2932/jpeg/12t.jpg) Valley of Slavyanka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 12, 2021
![](../../pictures/archives/compress/2015/1599/jpeg/04t.jpg) Valley of Slavianka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 18, 2015
![](../../pictures/archives/compress/2017/2072/jpeg/03t.jpg) Oak near Slavianka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, June 21, 2017
![](../../pictures/archives/compress/2021/2942/jpeg/17t.jpg) View across Slavyanka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 23, 2021
![](../../pictures/archives/compress/2015/1599/jpeg/11t.jpg) Road along Slavianka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 18, 2015
![](../../pictures/archives/compress/2013/1250/jpeg/19t.jpg) Slavianka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 2, 2013
![](../../pictures/archives/compress/2014/1521/jpeg/07t.jpg) Snowy trees at Green Woman Alley in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, December 28, 2014
![](../../pictures/archives/compress/2015/1664/jpeg/29t.jpg) Zelionoy Zhenshchiny (Green Woman) Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, September 26, 2015
![](../../pictures/archives/compress/2015/1663/jpeg/07t.jpg) Green Woman Alley from Staroshaleyny Pond in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, September 26, 2015
![](../../pictures/archives/compress/2018/2351/jpeg/10t.jpg) Zelionoy Zhenshchiny (Green Woman) Alley in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 8, 2018
![](../../pictures/archives/compress/2014/1521/jpeg/08t.jpg) Spruce trees at Green Woman Alley in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, December 28, 2014
![](../../pictures/archives/compress/2015/1599/jpeg/08t.jpg) View of a valley of Slavianka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 18, 2015
![](../../pictures/archives/compress/2017/2049/jpeg/01t.jpg) Pil Basnia Bridge of Slavyanka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 24, 2017
![](../../pictures/archives/compress/2017/2048/jpeg/26t.jpg) Pol Bashnya Bridge of Slavianka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 24, 2017
![](../../pictures/archives/compress/2021/2932/jpeg/13t.jpg) Pil Bashnya Bridge of Slavyanka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 12, 2021
![](../../pictures/archives/compress/2013/1268/jpeg/26t.jpg) Valley of Slavianka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 17, 2013
![](../../pictures/archives/compress/2017/2072/jpeg/12t.jpg) Valley of Slavyanka River in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, June 21, 2017
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