Erlend Haarberg / Woman pulling a sledge up a slope, Rapadalen, Sarek National Park, Laponia, Sweden, March 2015.

Chadden Hunter / Husky dog (Canis familiaris) Northern Canada, taken on location for BBC Frozen Planet series, 2009

Bryan and Cherry Alexander / Inuit hunter travelling by dog sled during the polar night. Northwest Greenland, 1987. 40 BELOW bookplate.

Bryan and Cherry Alexander / Inuit man pulling aside igloo door at dusk. Igloolik, Nunavut, Canada, 1993. 40 BELOW bookplate.

Niall Benvie / Man pulling a sledge, in winter landscape, snow on conifer trees in boreal forests, Riisitunturi National Park, Finland, February 2009

Jerry Monkman / Young boys sledding at Wagon Hill Farm in Durham, New Hampshire, USA, January 2009. Model released.

Jerry Monkman / Young girls sledding at Wagon Hill Farm in Durham, New Hampshire, USA, January 2009. Model released.

Jerry Monkman / Young boys sledding at Wagon Hill Farm in Durham, New Hampshire, USA, January 2009. Model released.

Uri Golman / Portrait of photographer Uri Golman with Greenland husky sled dog, North East Greenland. March 2009. Model released

Bryan and Cherry Alexander / Nenets boy pulling younger child on a sled. Yamal, Western Siberia, Russia, 2001.

Bryan and Cherry Alexander / Sun rises behind Reindeer / Caribou skin tents at a Nenets herders' winter camp. Yamal, Siberia, Russia, 1993.- 40 BELOW BOOK

Bryan and Cherry Alexander / Driving Reindeer / Caribou (Rangifer tarandus) across tundra at sunset. Khanty Mansiysk, Western Siberia, Russia, 2000.

Bryan and Cherry Alexander / Khanty herder standing on sled, with Reindeer / Caribou (Rangifer tarandus). Khanty Mansiysk, Western Siberia, Russia, 2000.

Bryan and Cherry Alexander / Dolgan reindeer / caribou herder's balok (wooden hut built on sled runners) with chimney smoking. Taymyr, Northern Siberia, Russia, 2004.

Bryan and Cherry Alexander / Chukchi men resting their Huskies (Canis familiaris) during hunting trip. Chukotskiy Peninsula, Chukotka, Siberia, Russia.

Bryan and Cherry Alexander / Chukchi hunters travelling with Huskies (Canis familiaris) near Cape Dezhnev. Chukotskiy Peninsula, Chukotka, Siberia, Russia.

Bryan and Cherry Alexander / Inuit hunter untangling team of Huskies (Canis familiaris) in front of iceberg. Savissivik, Northwest Greenland, 1997.

Bryan and Cherry Alexander / Inuit hunters watching Huskies (Canis familiaris) making their way to shore across new tidal ice. Savissivik, Northwest Greenland, 1991.

Bryan and Cherry Alexander / Inuit hunter rescuing Huskies (Canis familiaris) that have fallen through thin sea ice. Savissivik. Northwest Greenland, 1991.

Bryan and Cherry Alexander / Dog sleds pulled by Huskies (Canis familiaris)crossing sea ice, Northwest Greenland, 1980

Staffan Widstrand / Traditional reindeer sledge / troika, Nenets, Kanin Peninsula, Russia. Model released.

Staffan Widstrand / Dog sledge crossing snowy landscape with ecotourists Svalbard, Spitzbergen, Norway

Staffan Widstrand / Dogs pulling tourist sledge Spitzbergen, Svalbard, Norway

Staffan Widstrand / Reindeer {Rangifer tarandus} pulling sledge, Saami Easter, Norway

Ashley Cooper / Tourists from expedition cruise ship visiting Vernadsky Station Ukrainian research base, dog sleds in foreground. Galindez Island, Argentine Islands, Antarctica. December 2019.

Bryan and Cherry Alexander / A Khanty reindeer herder standing on his sled. Khanty Mansiysk, W.Siberia,Russia.

Bryan and Cherry Alexander / Vikka Piak, a 15 year Forest Nenets girl, rests on her sled during a reindeer drive.Khanty Mansiysk. Russia. 2000

Lynn M. Stone / Siberian Husky in snow by dog sled, Massachusetts, USA.

Sven Zacek / Fishermen travelling on back of sled, pulled by car after ice fishing. Lake Peipsi, Tartumaa County, Estonia. February.

Orsolya Haarberg / Orsolya Haarberg and Erlend Haarberg pulling sledges in the Jotunheimen mountains, with the Mt Store Smorstabbtinden in the background. Norway. April 2020.

Olga Kamenskaya / Reindeer skins on sled in Nenet camp, Nenets Autonomous Okrug, Arctic, Russia, July 2017.

Staffan Widstrand / Reindeer sledding in - 25 C, with Nils-Torbjorn Nutti, owner and operator of Nutti Sami Siida, Jukkasjarvi, Lapland, Laponia, Norrbotten county, Sweden Model released.

Staffan Widstrand / Reindeer sledding in - 25 C, with Nils-Torbjorn Nutti, owner and operator of Nutti Sami Siida, Jukkasjarvi, Lapland, Laponia, Norrbotten county, Sweden Model released.

Staffan Widstrand / Reindeer sledding in - 25 C, with Nils-Torbjorn Nutti, owner and operator of Nutti Sami Siida, Jukkasjarvi, Lapland, Laponia, Norrbotten county, Sweden Model released.

Staffan Widstrand / Reindeer sledding in - 25 C, with Nils-Torbjorn Nutti, owner and operator of Nutti Sami Siida, Jukkasjarvi, Lapland, Laponia, Norrbotten county, Sweden Model released.

Staffan Widstrand / Reindeer sledding in - 25 C, with Nils-Torbjorn Nutti, owner and operator of Nutti Sami Siida, Jukkasjarvi, Lapland, Laponia, Norrbotten county, Sweden Model released.

Staffan Widstrand / Reindeer sledding in - 25 C, with Nils-Torbjorn Nutti, owner and operator of Nutti Sami Siida, Jukkasjarvi, Lapland, Laponia, Norrbotten county, Sweden Model released.

Staffan Widstrand / A reindeer sledding tour experience with sami reindeer herdsmen at the Reindeer Lodge in -25 degrees C, run by Nutti Sami Siida, near the Icehotel, in Jukkasjarvi, Lapland, Laponia, Norrbotten county,...

Staffan Widstrand / A reindeer sledding tour experience with sami reindeer herdsmen at the Reindeer Lodge in -25 degrees C, run by Nutti Sami Siida, near the Icehotel, in Jukkasjarvi, Lapland, Laponia, Norrbotten county,...

Staffan Widstrand / RF - Reindeer sledding in - 25 C, Jukkasjarvi, Lapland, Laponia, Sweden. January 2016. Model released. (This image may be licensed either as rights managed or royalty free.)

Staffan Widstrand / RF - Reindeer sledding with Sami reindeer herdsman in -25 degrees. Jukkasjarvi, Lapland, Laponia, Norrbotten county, Sweden. January 2016. (This image may be licensed either as rights managed or roy...

Klein & Hubert / Siberian Husky sledge team running in snow, Vosges, France.

Eric Baccega / Nenet woman leading Reindeer (Rangifer tarandus) sleds on spring migration across tundra. Yar-Sale district, Yamal, Northwest Siberia, Russia. April 2016.

Eric Baccega / Nenet herder drives Reindeer (Rangifer tarandus) sleds on spring migration across tundra. Yar-Sale district, Yamal, Northwest Siberia, Russia. April 2016.

Eric Baccega / Nenet herders travel by Reindeer (Rangifer tarandus) sled on spring migration across tundra. Yar-Sale district, Yamal, Northwest Siberia, Russia. April 2016.

Eric Baccega / Nenet herders travel by Reindeer (Rangifer tarandus) sled on spring migration across tundra. Yar-Sale district, Yamal, Northwest Siberia, Russia. April 2016.

Eric Baccega / Sergueï Chorolya, Nenet herder drives Reindeer (Rangifer tarandus) sleds on spring migration across tundra. Yar-Sale district, Yamal, Northwest Siberia, Russia. April 2016.

Eric Baccega / Sergueï Chorolya, Nenet herder drives Reindeer (Rangifer tarandus) sled on spring migration across tundra. Yar-Sale district, Yamal, Northwest Siberia, Russia. April 2016.