George Sanker / Ellis River high in White Mountain National Forest. New Hampshire, October 2012.

Gavin Hellier / Volcanic tufa rock formations, Uchisar, Cappadocia, Anatolia, Turkey, 2008

Jack Dykinga / Matkatamiba Canyon with its Muave limestone scoured by erosion. Grand Canyon National Park, Arizona. May 2012.

Jack Dykinga / Shore Acres State Park with sandstone bluffs being pounded by tidal shifting surf, creating waterfalls over concretions in the stone. Oregon

Will Watson / Two men crossing a cloud forest river in spate, Jama Coaque Reserve, Manabi Province, Ecuador, February 2012. No release available.

Philippe Clement / Strange rock formations created by water erosion at the Orgues d'Ille-sur-Tet in the Pyrenees-Orientales, Pyrenees, France, June 2012

Sandra Bartocha / Waves of Baltic Sea washing over and polishing coloured pebbles, Markgrafenheide, Mecklenburg-Vorpommern, Germany, January

Jack Dykinga / Eroded Aztec sandstone, dating back to the Jurassic, 160 million years ago, colourful banding with fins and dikes produced by erosion, Mojave Desert near Las Vegas, Nevada, USA

Jack Dykinga / Colorado River Delta, with watercourse sculpted patterns eroded into the salt / silt flats near the Sea of Cortez, La Reserva del Golfo, Baja, Mexico

Jack Dykinga / Cibecue Creek waterfall pouring through canyon narrows, White Mountain Apache Reservation, Arizona, USA

Eric Baccega / Aerial view of Devon Island, Nunavut, Canada, June 2012.

John Beatty / 2020VISION / Helicopter dropping load onto moorland.

Erlend Haarberg / Londrangar sea stacks, Snaefellsnes peninsula, Iceland, February 2011

Erlend Haarberg / House on cliff top on a windy day, Arnarstapi, Snaefellsnes Peninsula, Iceland, March 2011

Erlend Haarberg / Northern gannet (Morus bassanus) colony on a sea stack and seabird cliff, Langanes peninsula, Iceland, July

Graham Eaton / Underwater landscape within a mountain stream, showing water turbulence, Snowdonia NP, Gwynedd, Wales, UK, December

Inaki Relanzon / Remarkable Rocks at night, Flinders Chase National Park, Kangaroo Island, South Australia State, Australia, September 2011.

Mark Hamblin / 2020VISION / Coastal landscape at sunset, near Elgol, Isle of Skye, Inner Hebrides, Scotland, UK, October 2010. Did you know? Skye has good biodiversity for an island, with coastal, heather and highland ecologies.

Eric Baccega / Eroded rocks at summit of Gorge de la Jonte with Peyreleau village in the background. Tarn, Cause, Cavennes, France.

Eric Baccega / Eroded rocks at summit of Gorge de la Jonte, Tarn, Causse, Cevennes, France.

David Welling / Lone Pine Peak and Granite rock formations covered with snow at winter sunrise, Alabama Hills, Eastern Sierras, California, USA NOT AVAILABLE FOR CARDS OR CALENDARS.

David Welling / Lightning from a summer monsoon thunderstorm flashes over natural rock bridge, Bryce Canyon NP, Utah, USA, August 2010. NOT AVAILABLE FOR CARDS OR CALENDARS.

Ernie Janes / Storm clouds building up off coasts of Norfolk, Weybourne Cliffs, Norfolk, UK, November

Joe Cornish / 2020VISION / Looking west from the upper slopes of Cul Mor, Coigach / Assynt SWT, Sutherland, Highlands, Scotland, UK, June 2011

Ernie Janes / Franz Josef Glacier, Southern Alps, South Island, New Zealand

Jeff Wilson / Ventefact, a wind shaped rock, in the Dry Valleys, Antarctica, December 2009. Taken on location for the BBC series, Frozen Planet.

Jeff Wilson / Director, Chadden Hunter, standing on wind eroded rock talking on radio to base camp, Dry Valleys, Antarctica, December 2009. Taken on location for the BBC series, Frozen Planet.

Philippe Clement / The mountain Torre dei Scarperi in the Dolomites, Italy. July 2010.

Bryan and Cherry Alexander / Melting iceberg showing the portion underwater that is sculpted by the sea. Polar regions. Digitally created image composite

Bryan and Cherry Alexander / Tabular iceberg showing the portion underwater that is sculpted by the sea. Polar regions. Digitally created image composite

Bryan and Cherry Alexander / Ice arch iceberg showing the portion underwater that is sculpted by the sea. Polar regions. Digitally created image composite

Joe Cornish / 2020VISION / Looking northwest from Cul Mor summit, Assynt mountains, Highland, Scotland, UK, June 2011

Joe Cornish / 2020VISION / View from summit of Sgorr Tuath, sandstone pinnacles, Assynt mountains, Highland, Scotland, UK, June 2011

Joe Cornish / 2020VISION / View from summit of Sgorr Tuath, sandstone pinnacles, Assynt mountains, Highland, Scotland, UK, June 2011. 2020VISION Exhibition. 2020VISION Book Plate. Did you know? Despite being one of the most nor...

Joe Cornish / 2020VISION / Eroded rock on summit of Cul Mor with Suilven mountain in the background, Assynt mountains, Highland, Scotland, UK, June 2011. Did you know? The mountains of north-west Scotland chart nearly 3 billion...

Brent Stephenson / Steep rock walls of the Tracy Arm, carved out by glacial action over millions of years. Alaska, United States, July 2010.

Inaki Relanzon / Cliffs and sea-stacks on the coast of "El Hierro" Island. Canary Islands, February 2011.

Inaki Relanzon / Dramatic light on Benijo Beach. Anaga Peninsula, Tenerife, Canary Islands, February 2011.

Juergen Freund / Small, tree-covered islet. This is a karst limestone formation with layers eaten away by water. Raja Ampat, West Papua, Indonesia, February 2010

Juergen Freund / Coconut palm (Cocos nucifera) roots getting washed out of the sand due to constant tide changes and erosion. Raja Ampat, West Papua, Indonesia, January 2010

Juergen Freund / Coconut palm (Cocos nucifera) roots getting washed out of the sand due to constant tide changes and erosion. Raja Ampat, West Papua, Indonesia, January 2010

Mark Taylor / 'The Marble Cathedrals' - marble rocks dissolved and sculpted by water. Rio Tranquilo, Chile, March 2010.

Brent Stephenson / The fallen Moai at Ahu Hanga Tetenga with the coastline in the background. Hanga Tetenga, Easter Island, October 2009.

Ross Hoddinott / Godrevy Lighthouse at sunset, seen through rocksand rockpool in the foreground. Nr Hayle, Cornwall, UK, June 2009

Inaki Relanzon / Aerial view of Dyrholaey and Reynisdrangar, near Vik, in South Iceland, April 2010

Alex Hyde / The Fairy Pools, on the Allt Coir' a' Mhadaidh river running down from the Cullin Hills, Glen Brittle, Isle of Skye, Inner Hebrides, Scotland, UK, February 2010.

Alex Hyde / The Fairy Pools, on the Allt Coir' a' Mhadaidh river running down from the Cullin Hills, Glen Brittle, Isle of Skye, Inner Hebrides, Scotland, UK, February 2010.

Daniel Heuclin / Rio Grande Cottonwood tree (Populus fremonti wislizenii) on a sand "pedestal" White Sands National Park. New-Mexico, USA, August 2009

Eric Baccega / Flowerpot sea stacks with outgoing tide at Hopewell Rocks. The world's highest tides. Bay of Fundy, New Brunswick, Canada, September 2010

Floris van Breugel / Warm sunlight after a snowstorm reveals intricate patterns in the 'Painted Hills' caused by slowly eroding rich fossil beds, in the John Day Fossil Beds National Monument, Oregon, USA. December 2009

Floris van Breugel / A dark passageway of a narrow flooded slot canyon, Zion National Park, Utah, USA. November 2009.

Floris van Breugel / Fisheye view from within Antelope Canyon, near Page, South West Arizona, USA, January 2008

Floris van Breugel / Sensationally twisted sandstone curves of Arizona's famous wave formation seen under partly cloudy skies. Vermilion Cliffs, Arizona, USA, December 2007.

Bryan and Cherry Alexander / Sastrugi, wind carved patterns in the snow, on snow covered winter tundra at sunset. Chukotskiy Peninsula, Chukotka, Siberia, Russia.

Bryan and Cherry Alexander / Recently rolled iceberg showing ridges formed beneath surface. Northwest Greenland, 1991.

Jack Dykinga / Eroded formation known as the 'Tres Maries', in the Valle de la Luna. One million year old composition of gravel, clay, salt, gems and quartz, against The Milky Way and Southern Cross in the night sky...

Jack Dykinga / Eroded rock formation known as the 'Tres Maries', in the Valle de la Luna. One million year old composition of gravel, clay, salt, gems and quartz, against The Milky Way and Southern Cross in the nigh...

Jack Dykinga / Valle de la Luna, The Codillera de Sal, formed by layer upon layer of salt, sand and clay, creating strata that buckled with earth's crust and lined with sand dunes. Atacama Desert, Chile. April 2009

Guy Edwardes / Reynisdrangur stacks and black sand beach Vik i Myrdal at night, Iceland, June 2009

Bryan and Cherry Alexander / Grounded iceberg, with grooves caused by air bubbles eroding ice. Greenland, 1985.

Inaki Relanzon / Lighthouse on Snafellsness Peninsula, Iceland, July 2008

Bryan and Cherry Alexander / Dramatically eroded cliffs reflected in the waters of Hall Basin. Ellesmere Island, Nunavut, Canada.

Jouan & Rius / View of Pinnacles desert after heavy rainfall, Nambung National Park, Western Australia. August 2009

Jouan & Rius / Kermit pool in Hancock gorge, Karijini National Park, Pilbara, Western Australia. August 2009

Jouan & Rius / Limestone formations in the Pinnacles desert, Nambung National Park, Western Australia. August 2009

Jouan & Rius / Cascade flowing in Hancock gorge, Karijini National Park, Pilbara, Western Australia. August 2009

Jouan & Rius / Wave rock, an eroded granite plateau, Hyden area, Western Australia. August 2009

Jouan & Rius / Aerial view of Limestone formations in the Pinnacles desert, Nambung National Park, Western Australia. August 2009

Jouan & Rius / Wave rock, an eroded granite plateau, Hyden area, Western Australia. August 2009

Jouan & Rius / Limestone formations in the Pinnacles desert, Nambung National park, Western Australia. July 2009

Tim Laman / Iceberg showing wave erosion, Antarctica, January

Stephen Dalton / Water splashing over a rock, backlit, UK

David Woodfall / Drought affected agricultural land, monsoon wind blowing top soil from fields, Madhya Pradesh, India, Asia

Sebastian Kennerknecht / Coastline at dusk, Shark Fin Cove, Davenport, California

Thomas Lazar / Ice hanging from arch in sea cave carved in soft sandstone cliffs, frozen lake, Squaw Bay, Lake Superior, Apostle Islands National Lakeshore, Wisconsin, USA, February 2009

Luiz Claudio Marigo / Turtle Rock, created by erosion in Sete Cidades National Park, municipality of Piracuruca, Piaua­ State, Northeastern Brazil. Darkening of the rock is due to the iron oxide. March 2009

Wild Wonders of Europe / Sá / Furadinho cave, regularly visited by Monk seal (Monachus monachus) with view of Bugio Island, Deserta Grande, Desertas Islands, Madeira, Portugal, August 2009

Wild Wonders of Europe / Zupanc / River Soca flowing through Velika korita with erosion in rock visible, Triglav National Park, Slovenia, June 2009.

Wild Wonders of Europe / Zupanc / River Lepenjica flowing through narrow gap in rocks, Triglav National Park, Slovenia, June 2009

Wild Wonders of Europe / Zupanc / Pothole created by the River Soca in Mala korita (Little Canyon) Triglav National Park, Slovenia, June 2009

Wild Wonders of Europe / Zupanc / River Soca flowing through Velika korita showing erosion, Triglav National Park, Slovenia, June 2009.

Wild Wonders of Europe / Green / Northern gannet (Morus bassanus) colony, The Flannans, Outer Hebrides, Scotland, July 2009

Wild Wonders of Europe / Bergmann / Aldeyjarfoss waterfall on the Skjalfandafljot river, Thingeyjarsyslur, Iceland, August 2009

Wild Wonders of Europe / Bergmann / Aldeyjarfoss waterfall on the Skjalfandafljot river, Thingeyjarsyslur, Iceland, August 2009

Wild Wonders of Europe / Bergmann / Hafragilsfoss waterfall, Jokulsargljufur National Park, Thingeyjarsyslur, Iceland, July 2009

Wild Wonders of Europe / Relanzón / Arch stone in "Los hervideros", South West Lanzarote, Canary Islands, Spain, March 2009 WWE BOOK PLATE.

Jack Dykinga / Patterns on the walls of a slot canyon on the Navajo Indian Reservation, Antelope Canyon, Arizona, USA

Jack Dykinga / South rim of Moran Point at sunrise, with the Colorado River below, Grand Canyon National Park, Arizona, USA

Jack Dykinga / Patterns on the walls of a slot canyon on the Navajo Indian Reservation, Antelope Canyon, Arizona, USA

Jack Dykinga / Tent rocks in the Peralta Canyon, New Mexico, USA. Rocks are conical formations of eroded volcanic tuff and pumice supporting 'cap rocks'.

Jack Dykinga / Striated sandstone patterns in petrified sand dunes caused by erosion, Vermilion Cliffs National Monument, Colorado Plateau, Arizona, USA

Jack Dykinga / Hoodoo with rock cap on textured Dakota stone and softer Entrada sandstone, sunset, Glen Canyon National Recreation Area, Arizona, USA

Jack Dykinga / Engelmann spruce (Picea engelmannii) growing amongst pinnacles of volcanic tuff, dawn, Wheeler Geological Area Wilderness, Rio Grande National Forest, Colorado, USA

Jack Dykinga / Tumbleweed, dried and sun bleached, in the water sculpted Antelope Canyon, Navajo Indian Reservation, Arizona, USA

Jack Dykinga / Eroded striated sandstone (petrified sand dunes) Vermilion Cliffs National Monumant, Colorado Plateau, Arizona, USA

Jack Dykinga / Antelope Canyon, a slot canyon with eroded sandstone patterns and rays of sunlight filtering in, Navajo Reservation, Arizona, USA