Alex Hyde / Wildflowers and hut in alpine meadow, Nordtirol, Austrian Alps, July.

Colin Monteath / Climber near Pioneer Hut with Douglas Peak and Fox Glacier, Westland Tai Poutini National Park, New Zealand

Inaki Relanzon / Domestic sheep, horses, shepherd hut and enclosure in the mountain, Ordesa National Park, Pyrenees, Aragon, Spain. October 2009

Wild Wonders of Europe / Krahmer / Aiguilles de Chamonix with Mont Blanc (4,810m) right, reflected in Lac Blanc with small mountain hut at dawn, Haute Savoie, France, Europe, September 2008

Philippe Clement / Mountain hut with Mount Paterno and three peaks of Drei Zinnen / Tre Cime di Lavaredo, in evening light. Dolomites, South Tyrol, Italy. October 2019.

Duncan Murrell / Subalpine vegetation along the trail to the Top Maropea Hut in the Ruahine Range, North Island, New Zealand.

Duncan Murrell / Subalpine vegetation on the trail to the Top Maropea Hut in the Ruahine Range, North Island, New Zealand.

Duncan Murrell / Subalpine vegetation along the trail to the Top Maropea Hut in the Ruahine Range, North Island, New Zealand.

Duncan Murrell / Subalpine vegetation along the trail to the Top Maropea Hut in the Ruahine Range, North Island, New Zealand.

Duncan Murrell / Subalpine vegetation along the trail to the Top Maropea Hut in the Ruahine Range, North Island, New Zealand.

Duncan Murrell / Subalpine vegetation along the trail to the Top Maropea Hut in the Ruahine Range, North Island, New Zealand.

Duncan Murrell / Subalpine vegetation along the trail to the Top Maropea Hut in the Ruahine Range, North Island, New Zealand.

Chase Dekker / Huts and peak, Matterhorn, Findeln, Switzerland

Ashley Cooper / Solar panels on the refuge on the Col du Balme between Switzerland and France. September 2014

Ashley Cooper / Solar panels on the Cabanne D' Orny in the Swiss Alps, providing electricity for this off grid mountain hut at over 10,000 feet. Switzerland, August 2014

Ashley Cooper / Solar panels on the Cabanne D' Orny in the Swiss Alps, providing electricity for this off grid mountain hut at over 10,000 feet. Switzerland, August 2014

Ashley Cooper / Solar panels attached to a cliff above the Refuge Bertone, which provied electricity to this off grid mountain hut. Tour du Mont Blanc, Alps, Italy. August 2014

Ashley Cooper / Solar panels attached to a cliff above the Refuge Bertone, which provied electricity to this off grid mountain hut. Tour du Mont Blanc, Alps, Italy. August 2014

Ashley Cooper / Solar panels attached to a cliff above the Refuge Bertone, which provied electricity to this off grid mountain hut. Tour du Mont Blanc, Alps, Italy. August 2014

Ashley Cooper / Solar panels attached to a cliff above the Refuge Bertone, which provied electricity to this off grid mountain hut. Tour du Mont Blanc, Alps, Italy. August 2014

Ashley Cooper / Solar panels attached to a cliff above the Refuge Bertone, which provied electricity to this off grid mountain hut. Tour du Mont Blanc, Alps, Italy. August 2014

Ashley Cooper / Solar panels on a visitor centre in the Vallon de la Lex Blanche below Mont Blanc, Alps, Italy. August 2014

Ashley Cooper / Solar panels on a visitor centre in the Vallon de la Lex Blanche below Mont Blanc, Alps, Italy. August 2014

Ashley Cooper / Solar photo voltaic panels powering a Guest house at Annapurna Base Camp in the Himalayas, Nepal. December 2012

Ashley Cooper / Solar photo voltaic panels powering a Guest house at Annapurna Base Camp in the Himalayas, Nepal. December 2012

Ashley Cooper / Solar photo voltaic panels powering a Guest house at Annapurna Base Camp in the Himalayas, Nepal. December 2012

Ashley Cooper / Sunrise over Antarctic expedition ships in the harbour of Ushuaia, Tierra del Fuego, Argentina. February 2014.

Ashley Cooper / Antarctic cruise boats moored in the town of Ushuaia, Tierra del Fuego, Argentina. February 2014.

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.

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.

Ashley Cooper / Old ski club hut on the peak of Chacaltaya (5,395m), until 2009 Chacaltaya had a glacier which supported the worlds highest ski lift at over 17,000 feet. The glacier finally disappeared completely in...

Ashley Cooper / Peak of Chacaltaya (5,395m), in the Bolivian Andes, which until 2009 had a glacier supporting the world's highest ski lift at over 17,000 feet. The glacier finally disappeared completely in 2009 due t...

Ashley Cooper / Old ski club hut on the peak of Chacaltaya (5,395m), until 2009 Chacaltaya had a glacier which supported the worlds highest ski lift at over 17,000 feet. The glacier finally disappeared completely in...

Ashley Cooper / Old ski club hut on the peak of Chacaltaya (5,395m), until 2009 Chacaltaya had a glacier which supported the worlds highest ski lift at over 17,000 feet. The glacier finally disappeared completely in...

Erlend Haarberg / Mountain hut at Knivsflaa, Geirangerfjorden, UNESCO World Heritage Site. More og Romsdal, Norway, May.

SCOTLAND: The Big Picture / A'Chuil Bothy below conifer plantation, Glen Dessary, Lochaber, Scotland, UK, September 2016.

Philippe Clement / The remote Lagangarbh Hut along River Coupall in front of Buachaille Etive Mor in Glen Coe on a rainy day, Scottish Highlands, Scotland, UK, September 2016

Erlend Haarberg / Agnes Tanko at her summer shack in Valea Garbea (Gorbepatak). Ciucului mountains, Ghimes, Transylvania, Romania.

Erlend Haarberg / Agnes Tanko walking to her summer shack in Valea Garbea with cow livestock, Ciucului mountains, Ghimes, Transylvania, Romania.

Erlend Haarberg / Sarig Attila milking his cow in AldomAspataka (Ghimes). Ciucului mountains, Transylvania, Romania.

Erlend Haarberg / Agnes Tanko at her summer shack in Valea Garbea (Gorbepatak). Ciucului mountains, Ghimes, Transylvania, Romania.

Erlend Haarberg / Shed, with Belioara in the background, nearby Posaga de Sus, Sasul-Craiului de la Scarita-Belioara. Alba county, Transylvania, Romania.

Iris Thorsteinsdottir / Small thermal hotpool and hut on the shore of the Westfjords, Iceland, June 2011.

Nick Upton / Herdsmen's / shepherd's huts or katuns and Cattle (Bos taurus) on alpine grassland, Sedlo pass, Durmitor National Park, Montenegro, July 2014.

Graham Eaton / Iron age hut circle, within the Tre'r Ceiri Hill Fort, above Nefyn, Gwynedd, Wales, September 2013.

Erlend Haarberg / Ovre Pikhaugvatnet Lake with a small hut, Pikhaughytta, on the bank, and a man crouched by he water, Glomdalen Valley, Saltfjellet-Svartisen National Park, Norway, August 2015.

Erlend Haarberg / Ovre Pikhaugvatnet Lake through the window of the Pikhaughytta, a small hut, Glomdalen Valley, Saltfjellet-Svartisen National Park, Norway, August 2015.

Juan Carlos Munoz / Old stone walls and traditional hut in a mountain landscape, Portillo de La Sa, Soba Valley, Collados del Ason Natural Park, Cantabria, Spain, May 2015.

Juan Carlos Munoz / Old stone walls and traditional hut in a mountain landscape, Portillo de La Sa, Soba Valley, Collados del Ason Natural Park, Cantabria, Spain, May 2015.

Enrique Lopez-Tapia / Borona village, with thatched huts. Ethiopia, November 2014

Erlend Haarberg / Mountain hut at Blomberg, Geiranger-fjord. UNESCO World Heritage Site. More og Romsdal, Norway, May 2012

Loic Poidevin / Wooden cart used to transport seals outside hut of trapper. Spitzberg, Svalbard, Norway, August 2014.

David Noton / Huts on the shore of the Nam Song River, Vang Vieng, Laos, March 2009.

David Noton / Sun setting over mountains near Vang Vieng, Laos, March 2009.

Orsolya Haarberg / Mountain hut with grass roof, at Blomberg (452m) Geirangerfjorden. More og Romsdal, Norway. May 2012

Orsolya Haarberg / Reflection of Geirangerfjorden and Sunnylvsfjorden in a window of a mountain hut at Blomberg (452m). More og Romsdal, Norway. May 2012

Colin Monteath / Climber near Pioneer Hut with Douglas Peak and Fox Glacier, Westland Tai Poutini National Park, New Zealand

Colin Monteath / Climber near Pioneer Hut with Douglas Peak and Fox Glacier, Westland Tai Poutini National Park, New Zealand

Mike Read / Mountain hut near the top of the Valley de Combeau, with wildflower meadow containing Bird's foot trefoil (Lotus corniculatus), Ox-eye daisy (Leucanthemum vulgare) and Mountain cornflower (Centaurea),...

Mike Read / Wildflower meadow and mountain hut near the Col du Prayer, Parc Naturel Regional du Vercors, France, June 2012.

Oriol Alamany / Ventosa i Calvell mountain hut at sunset, on the trekking route 'Carros de Foc', Aiguestortes i Estany de Sant Maurici National Park, Alta Ribagorza, Pyrenees, Catalonia, Spain

Oriol Alamany / Mountain walkers dining at Colomina mountain hut, Aiguestortes i Estany de Sant Maurici National Park, Vall Fosca, Pyrenees, Catalonia, Spain

Oriol Alamany / Hiker with snowshoes arriving at Ernest Mallafre mountain hut, Aiguestortes i estany de Sant Maurici National Park, Catalonia, Pyrenees, Spain, Model released.

Oriol Alamany / Colomina mountain hut, with man playing the accordian, Aiguestortes i Estany de Sant Maurici National Park, Vall Fosca, Pyrenees Pallars Jussa , Catalonia, Spain

Oriol Alamany / Colomina mountain hut and Colomina Peak, Aiguestortes i Estany de Sant Maurici National Park, Vall Fosca, Pyrenees, Pallars Jussa , Catalonia, Spain

Oriol Alamany / Hiker climbing to la Breche mountain hut below la Breche de Roland, Luz-Gavarnie valley, Pyrenees National Park, Pyrenees, France. Model released

Oriol Alamany / Sign to mountain hut refuge in the valley of Gerber. Aiguestortes i Estany de Sant Maurici National Park, Pyrenees, Catalonia, Spain

Oriol Alamany / Hiking boots and backpacks at the entrance of Grey mountain hut, trekking in National Park Torres del Paine, Patagonia, Chile

Colin Monteath / Hut after fresh snowfall, Tasman Glacier valley with Malte Brun and Liebig Range in background, Mount Cook National Park, New Zealand

Colin Monteath / Hut with alpenglow over Malte Brun and Liebig Range, Mount Cook National Park, New Zealand

Florian Möllers / Small hut among flowering wild cherry and peach trees in late snow on a mountain slope, Zhouzhi Nature Reserve, Qinling Mounains, Shaanxi, China, April 2006

Orsolya Haarberg / Traditional wooden farm hut beside Lake Laitaure, with Skierfe mountain in the background, Aktse, Laponia, Sweden, sunrise, winter

Philippe Clement / The Lagangarbh Hut in Glen Coe / Glencoe with Buachaille Etive Mor mountain in the background, Highlands, Scotland, UK, May 2010

Oriol Alamany / Los Cuernos mountain hut on the shores of Nordenskjold lake on the W Trek, Torres del Paine National Park, Patagonia, Chile, January 2006

Oriol Alamany / Mountain river near Refugio Los Cuernos hut on the W Trek, Torres del Paine National Park, Patagonia, Chile, January 2006

Wild Wonders of Europe / Zupanc / Second Double Lake (Dvojno jezero) with mountain hut (Koca pri Triglavskih jezerih) Triglav National Park, Slovenia, August 2009

Wild Wonders of Europe / Zupanc / Second Double Lake (Dvojno jezero) with mountain hut (Koca pri Triglavskih jezerih) Triglav National Park, Slovenia, August 2009

Wild Wonders of Europe / Krahmer / Tre Cime di Lavaredo mountain hut, Sexten Dolomites, South Tyrol, Italy, Europe, July 2009

Wild Wonders of Europe / Krahmer / Mountain landscape of Lac Blanc with Aiguilles de Chamonix with small mountain hut at dawn, Haute Savoie, France, Europe, September 2008

Ingo Arndt / Mountain shelter at Lac Blanc with reflection of Mont Blanc, France

Juan Manuel Borrero / People in viewing hut, Huacarpay lake, Vilcanota Mountain range, Peru 2006.

Colin Monteath / Mt Sefton, climber at dawn above Mueller hut and cloud-filled Mueller Glacier, Mt. Cook, also called Aoraki, in the distance, Mt. Cook National Park, New Zealand

Martha Holmes / Mountain hut at dawn with Nelion Peak behind, Mount Kenya, Kenya (17,022 ft)

Jose B. Ruiz / Alpine refuge hut next to mountain peak, Picos de Europa, Cantabria, Spain

Gerry Ellis / Pyrethrum (Chrysanthemum cinerariaefolium) fields on east slope of Virunga National Park's former land that was cleared in 1967-68 with Mt Muhabura in distance at the edge of Parc National Des Volcans...

Martha Holmes / Summer huts in mountains near Simikot, Bajura, Nepal

Asgeir Helgestad / Mountain hut after snow storm. Finse, Hardangervidda, Norway

Asgeir Helgestad / Hikers putting on skiis outside mountain hut in snow storm. Finse, Hardangervidda, Norway

Asgeir Helgestad / Hikers putting on skiis outside mountain hut in snow storm. Finse, Hardangervidda, Norway

Asgeir Helgestad / Mountain hut in snow storm. Finse, Hardangervidda, Norway

Asgeir Helgestad / Skiis and rucksacks outside mountain hut after snow storm. Finse, Hardangervidda, Norway

Chase Dekker / Huts in valley with mountains, Lauterbrunnen, Switzerland

Chase Dekker / Huts and peak, Matterhorn, Findeln, Switzerland

Shaun Barnett / Rime ice on Syme Hut, Mount Taranaki, Egmont National Park, New Zealand

Nick Groves / Footstool, Sefton, Unicorn, and Dilemma Mountains as seen from Empress Hut, Mount Cook National Park, New Zealand

Martin Gabriel / Mountain hut in Valley of Seven Lakes Triglav NP Slovenia