Floris van Breugel / Driving the remote dirt roads, 11000ft altitude, White Mountains, California, USA, June

Juan Carlos Munoz / Tourists hiking along dirt track, Triglav National Park, Julian Alps, Slovenia, October 2010.

Thomas Marent / Indian Rhinoceros (Rhinoceros unicornis) crossing road near tourists, Kaziranga National Park, Assam, India

Thomas Marent / African Elephant (Loxodonta africana) crossing dirt road near tourists, Serengeti National Park, Tanzania

Cyril Ruoso / Ring-tailed Lemur (Lemur catta) troop walking down dirt road, vulnerable, Berenty Private Reserve, Madagascar

Jabruson / African rainforest transport penetration. Road and associated infrastructure development difficulties. The onset of the rainy season deteriorates dirt roads and vehicles get stuck in mud, Cameroon, Au...

Christophe Courteau / Pantaneiros horsemen leading cattle and horse livestock along the Transpantaneira, Pantanal, Brazil, July 2008

Christophe Courteau / Two African lion cubs (Panthera leo) playing on a road in the Kalahari Desert, Botswana.

Pete Oxford / Road runnning through rainforest, Iwokrama Rainforest Reserve, Guyana

Vincent Grafhorst / Dirt track through the grassy plains, Makgadikgadi, Botswana

John Waters / Banded Mongoose (Mungos mungo) group on the move, crossing a track at Mweya Lodge, Queen Elizabeth National Park, Uganda, E. Africa

Yva Momatiuk & John Eastcott / Grizzly Bear (Ursus arctos horribilis) pair of spring cubs, Denali National Park and Preserve, Alaska

Gerry Ellis / Rainforest logs on logging road, Cameroon

Richard Du Toit / Windmill and pastures, Eastern Cape, South Africa

Karine Aigner / Bengal tiger (Panthera tigris tigris) running across dirt track between a large number of watching tourists. Ranthambore National Park, Rajasthan, India. 2018.

Karine Aigner / Bengal tiger (Panthera tigris tigris), two sub-adults crossing dirt road with tourists watching and photographing from jeep in background. Ranthambore National Park, Rajasthan, India.

Charlie Summers / White-tailed jackrabbit (Lepus townsendii) running on a dirt road, Jackson County, Colorado, USA, June.

Charlie Summers / White-taled jackrabbit (Lepus townsendii) running on dirt road, Jackson County, Colorado, USA, June.

Ashley Cooper / Dirt track to Phalombe below Mount Mulanje, Malawi, March 2015.

Ashley Cooper / Navala village in the Fijian highlands, the only village left on the island still composed entirely of traditional Bure houses, Fiji, March 2007.

Shane P. White / Grandidier's Baobab (Adansonia grandidieri) trees along road used by locals, Avenue of the Baobabs, Madagascar

Sebastian Kennerknecht / Pine (Pinus sp) tree plantation with remnant forest, Kaapsehoop, South Africa

Yva Momatiuk & John Eastcott / Tundra and gravel road, Tungnarfjoll Mountains and Fogrufjoll Mountains, Iceland

Yva Momatiuk & John Eastcott / Road in volcanic rock valley, Langanes Peninsula, Iceland

Martin Willis / Desert storm at sunset, Namib Desert, Twyfelfontein, Namibia

Louis-Marie Preau / Dirt road in Wadi El Hitan (Whale Valley) Wadi Hitan National Park UNESCO World Heritage Site, Egypt. November 2008.

Charlie Summers / African elephant (Loxodonta africana) charging down a dirt road kicking up lots of dust, Sanbona Wildlife Reserve, South Africa.

Rhonda Klevansky / Dirt track in St. Lucia Game Reserve, iSimangaliso Wetland Park UNESCO World Heritage Site, South Africa

Christophe Courteau / View from a car driving on a dirt road, Kaokoland, North West of Namibia. 2015.

Sandesh Kadur / Female Bengal tiger (Panthera tigris tigris) walking along a dirt road with two male cubs, followed by tourist vehicles, Ranthambore National Park, Rajasthan, India. 2016.

David Pattyn / Workers returning from Sisal plantations in tractor and trailer along dirt track, Berenty Private Reserve, southern Madagascar, August 2016.

Jen Guyton / Dirt road stretches across a desolate landscape in the Namib Desert, Namibia. January 2015

Jen Guyton / Dirt road winding through sand dunes of orange, iron-rich soil. Namib Desert, Namibia. Crop. February 2015

Merryn Thomas / Four-wheel drive road trip through Salvador Dali Desert, Altiplano, Sur Lipez Province, Potosi Department, Bolivia. December 2013.

Pete Oxford / Aerial view of dirt road crossing the Rurununi savanna, Guyana, South America

Pete Oxford / Dirt road running through tropical rainforest, Guyana South America

Theo Allofs / African Lion (Panthera leo) male near safari vehile, Solio Game Reserve, Kenya

Pete Oxford / Bikers riding near volcano, Cotopaxi Volcano, Cotopaxi National Park, Andes, Ecuador

Andy Rouse / Red Fox (Vulpes vulpes) following person on dirt track, Cardiff, Wales. June.

Yva Momatiuk & John Eastcott / Dirt road and old grain elevator, Williston Basin, North Dakota

Pete Oxford / Dirt road in rainforest, Rupununi, Guyana

Pete Oxford / Dirt road cuts through savanna, Rupununi, Guyana

Pete Oxford / Dirt road in rainforest, Rupununi, Guyana

Pete Oxford / Dirt road on savanna, Rupununi, Guyana

Pete Oxford / Dirt road on savanna, Rupununi, Guyana

Pete Oxford / Dirt road in savanna at dusk, Rupununi, Guyana

Richard Du Toit / Dirt road, Kgalagadi Transfrontier Park, South Africa

Jeff Foott / Dirt road, Twenty Mule Team Canyon, Death Valley National Park, California

Jeff Foott / Dirt road winding through rock formations, Twenty Mule Team Canyon, Death Valley National Park, California

Cheryl-Samantha Owen / Flat-top acacia tree (Acacia abyssinica or Vachellia abyssinica) over a dirt road, Tarangire National Park, Tanzania.

Aflo / Giraffe (Giraffa camelopardalis) on expansive dirt road with clouds, Etosha National Park, Namibia.

Constantinos Petrinos / Dirt road in the Sanetti plateau, Bale Mountains National Park, Ethiopian Highlands, Oromia Region, Southeast Ethiopia, Africa, March 2009. Endemic species.

Juan Carlos Munoz / Mountainous landscape and dirt track in Triglav National Park, Slovenia, October 2014.

Martin Willis / Dirt road through plain, Queensland, Australia

Charlie Summers / Massive dust devil rakes the dry shoreline of Lake Ndutu, Ngorongoro Conservation Area, Tanzania.

Steve O. Taylor (GHF) / Newly built road, Singkawang, West Kalimantan, Indonesian Borneo. July 2010.

Tim Fitzharris / Trees in autumn along lake, Texas

Hiroya Minakuchi / African Wild Dog (Lycaon pictus) pups with baby sitter, Okavango Delta, Botswana

Hanne & Jens Eriksen / Common asiatic monitor / Asian water monitor lizard (Varanus salvator) crossing dirt track, Thailand, February

Denis-Huot / Work to rebuild tracks in the park after the flooding of Lake Nakuru, Nakuru National Park, Kenya, November 2012.

Steve O. Taylor (GHF) / Man riding bike along dirt road in village, Katanga, Democratic Republic of the Congo, March 2012.

Hougaard Malan / Thunderclouds building over one of Namibia's many dirt roads. Southern Namibia. April 2014. Non-ex.

Pete Oxford / American Alligator (Alligator mississippiensis) on road, Little Saint Simon's Island, Georgia

Pete Oxford / Spanish Moss (Tillandsia usneoides) growing on California Live Oak (Quercus virginiana) trees, Little Saint Simon's Island, Georgia

Richard Du Toit / Wild fire in the distance and scorched landscape, Marievale Bird Sanctuary, South Africa, June 2013

Wim van den Heever / Giraffe (Giraffa camelopardalis) walking along a road, Phinda Private Game Reserve, South Africa.

Wim van den Heever / Black rhinoceros (Diceros bicornis) crossing a road, Phinda Private Game Reserve, South Africa.

Wim van den Heever / African lioness (Panthera leo) looking at prey through foliage, Phinda Private Game Reserve, South Africa.

Wim van den Heever / Two Cheetahs (Acinonyx jubatus) on a track, Phinda Private Game Reserve, South Africa.

Charlie Summers / Slender Russian Thistle / Tumbleweed (Salsola collina) rolling across a dirt road in a high wind at Bosque del Apache, New Mexico, December.

Nick Upton / Common spotted orchids (Dactylorhiza fuchsii) and Rough hawkbit (Leontodon hispidus) flowering on the grassy verge of a dirt road along The Ridgeway, Marlborough Downs, Wiltshire, UK, July.

David Pattyn / Bengal tiger (Panthera tigris tigris) walking and being filmed by a National Geographic filming crew. Ranthambore National Park, Rajasthan, India, April 2012.

David Pattyn / Tourists in vehicle following and watching old female Bengal tiger (Panthera tigris tigris) Ranthambore National Park, Rajasthan, India.

Angelo Gandolfi / Wooden bridges on the Transpantaneira dirt road. Pantanal, Mato Grosso, Brazil, September 2010.

John Waters / A half-flooded tractor track heading towards inundated farmland on West Sedgemoor near Stoke St Gregory. Somerset Levels, Somerset, UK. January 2014

Sebastian Kennerknecht / Gray-cheeked Mangabey (Lophocebus albigena) being pulled out of bag by National Park guard during illegal bushmeat seizure, Lope National Park, Gabon

Peter Lewis / Rural road through the Poppy (Papaver rhoeas) fields. South Downs National Park, Arundel, West Sussex, England, UK. June.

Roger Powell / Cart tracks in a flowering meadow, with Cork oaks (Quercus suber) in the background, Beja, Portugal, April.

Tony Phelps / Leopard tortoise (Stigmachelys pardalis) crossing a road with a car approaching, Swartberg Mountains, Western Cape, South Africa.

Ernie Janes / Top soil blowing from coastal fields during dry weather Sherringham, Norfolk, April

Chien Lee / African Oil Palm (Elaeis guineensis) plantation in early stage, Malaysia

Chien Lee / African Oil Palm (Elaeis guineensis) plantation to be planted in recently cleared area, Malaysia

Chien Lee / African Oil Palm (Elaeis guineensis) plantation in early stage, Malaysia

Cyril Ruoso / Ring-tailed Lemur (Lemur catta) walking on dirt road, vulnerable, Berenty Private Reserve, Madagascar

Cyril Ruoso / Ring-tailed Lemur (Lemur catta) troop walking down dirt road, vulnerable, Berenty Private Reserve, Madagascar

Cyril Ruoso / Tiger (Panthera tigris) growling, Ranthambore National Park, India

Colin Monteath / Dirt road, Saint Bathans, Central Otago, New Zealand

Konrad Wothe / Grandidier's Baobab (Adansonia grandidieri) trees along dirt road near Morondava, Madagascar

Wild Wonders of Europe / Widstrand / Couple walking down dirt road in Sfinthu Gheorghe, Danube delta rewilding area, Romania, June 2012

Enrique Lopez-Tapia / Dirt road through Niokolo Koba National Park, Senegal, UNESCO World Heritage site.

Charlie Summers / Flap necked chameleon (Chamaeleo dilepis) crossing dirt road, Tarangire National Park, Tanzania

Theo Allofs / Red Kangaroo (Macropus rufus) on road, Queensland, Australia

Theo Allofs / Red Kangaroo (Macropus rufus) crossing dirt road, Queensland, Australia

Theo Allofs / Dirt road across savanna, Namib-Naukluft National Park, Namib Desert, Namibia

Matthias Breiter / African Elephant (Loxodonta africana) herd crossing road, Kruger National Park, South Africa

Richard Herrmann / Desert Tortoise (Gopherus agassizii) young female forages near dirt road, west of Harper Dry Lake, Mojave Desert, California