Mongolia operates one of the world's most extensive protected area systems relative to national territory. As of 2023, approximately 27.5 percent of Mongolia's 1,564,116 square kilometers falls under some form of environmental protection, distributed across four main categories: strictly protected areas, national parks, nature reserves, and monuments. This network emerged from Soviet-influenced conservation models beginning in 1965 and expanded substantially after democratic reforms in 1990. The Ministry of Environment and Tourism administers the system through 99 separate protected zones, though enforcement capacity varies considerably due to terrain scale and limited personnel deployment.
Bogd Khan Mountain Strictly Protected Area holds the distinction of being one of the world's oldest legally designated nature reserves. Qing Dynasty authorities declared the mountain range south of Ulaanbaatar sacred in 1778, establishing a 41,651-hectare zone where hunting and logging faced religious prohibition. The Mongolian government formalized this status in 1965, creating the country's first modern protected area. The granite peaks reach 2,256 meters at Tsetsee Gun summit. The reserve supports populations of Siberian ibex, roe deer, and approximately 250 bird species including golden eagles and lammergeiers. Three Buddhist temples occupy sites within boundaries: Manzushir Monastery, largely destroyed in 1937 purges, Zaisan Memorial, and Tsetseegun Temple. Access from Ulaanbaatar requires 20 to 30 minutes by vehicle, making this the most visited protected area in Mongolia with approximately 60,000 annual visitors as of 2019 data.
Gobi Gurvansaikhan National Park encompasses 2,694,700 hectares across Ömnögovi Province, established in 1993. The name translates to "Three Beauties of the Gobi," referring to three ridges within the eastern Gobi Altai range: Baruun Saikhan, Dund Saikhan, and Züün Saikhan, with elevations reaching 2,815 meters at Ih Artsan peak. The park contains Mongolia's most visited natural feature, Yolyn Am, a gorge named after the lammergeier where ice persists into summer months in shaded sections despite surrounding desert conditions. Ice thickness reached six meters in some years prior to 2000, though climate data from the park office indicates reduced ice retention after 2005, with some summers now seeing complete seasonal melt. The canyon extends 10 kilometers with walls rising 200 meters. Khongoryn Els sand dunes occupy the park's northern section, stretching 180 kilometers in length and reaching 300 meters in height, making them among Asia's largest dune formations. The dunes produce audible low-frequency sounds when sand moves, documented by acoustic researchers in 2008. Wildlife populations include argali sheep, Mongolian gazelle, black-tailed gazelle, and the critically endangered Gobi bear, with the latter numbering between 22 and 31 individuals according to 2019 Gobi Bear Project surveys. The park maintains four ranger stations and three ger camps authorized for tourist accommodation. Entry fees as of 2023 stood at 3,000 Mongolian tögrög per person daily.
Khustain Nuruu National Park, 95 kilometers west of Ulaanbaatar, occupies 50,620 hectares primarily for protection of takhi, known internationally as Przewalski's horse. This species became extinct in the wild in 1969 when the last individuals were observed in southwestern Mongolia. The Foundation for the Preservation and Protection of the Przewalski Horse, a Dutch organization, initiated reintroduction in 1992, transporting captive-bred animals from European zoos. Initial release involved 16 horses. The population reached 380 individuals by 2016 according to park census data. These remain the only true wild horses, never domesticated, genetically distinct from domestic horses with 66 chromosomes compared to 64 in domestic breeds. The park straddles forest-steppe transition zones, with elevations ranging from 1,200 to 1,843 meters at Khustain peak. Vegetation includes feather grass steppe at lower elevations and larch-birch forest patches on north-facing slopes. Red deer, Eurasian lynx, Pallas's cat, and approximately 217 bird species including Daurian partridge inhabit the area. A visitor center established in 2007 includes museum displays on takhi genetics and reintroduction methodology. Three marked hiking trails between two and 12 kilometers allow wildlife observation. Park regulations prohibit visitors from approaching takhi closer than 200 meters; observation requires dawn or dusk timing when herds descend from ridges to water sources. Overnight stays occur in park-managed ger camps or camping areas designated 500 meters from tourist infrastructure. Entry costs 10,000 tögrög for foreign nationals, 3,000 tögrög for domestic visitors as of 2023.
Altai Tavan Bogd National Park protects 636,161 hectares in Bayan-Ölgii Province where Mongolia's borders meet Russia and China. "Tavan Bogd" translates to "Five Saints," referencing five peaks in the Tavan Bogd massif. Khüiten Peak at 4,374 meters is Mongolia's highest point, supporting the country's largest glaciers. Potanin Glacier on Khüiten's north face extends 14 kilometers, the longest glacier in Mongolia, though measurement data from 2009 showed 27-meter average terminus retreat compared to 1989 positions. Approximately 34 glaciers occupy the national park according to 2014 mapping. Snow leopard populations inhabit these elevations, with camera trap studies conducted by Snow Leopard Trust from 2008 to 2015 identifying 11 to 15 individuals within park boundaries. Argali sheep, ibex, and Altai snowcock occur at high elevations. Lower valleys support populations of gray wolves and red fox. The park contains over 10,000 petroglyphs and 20 Turkic stone monuments called Khirigsuur, dated between 1200 BCE and 500 CE. Three major river systems originate within the park: Khovd River flowing east, and tributaries feeding Russia's Ob River system northward. Kazakh communities practice transhumant pastoralism within park boundaries under arrangements established at park creation; approximately 400 families maintain summer pastures, primarily herding sheep, goats, yaks, and horses. Eagle hunting traditions continue among Kazakh residents; the annual Golden Eagle Festival occurs in Ölgii, 210 kilometers from park headquarters. Peak climbing requires permits arranged through Mongolian Mountaineering Federation; technical ice climbing skills are necessary for Khüiten summit attempts. The climbing season runs July through September when crevasse conditions are most visible. Access requires multi-day four-wheel drive travel from Ölgii with no maintained roads beyond 40 kilometers from park entry. Park entry costs 3,000 tögrög daily; climbing permits cost additional fees determined by peak elevation.