Best geothermal destinations in North America
Best geothermal destinations in North America
Famous geyser basins and steaming thermal springs in North America
North America's geothermal offer is anchored by the vast hydrothermal systems of the Rocky Mountain interior, where the continent's most extensive concentration of geysers, hot springs, fumaroles and mud pools sits within a well-developed national park infrastructure. Beyond the headline destinations, significant wild hot spring circuits are distributed across the western mountain ranges, offering a more informal soaking experience with considerably less visitor infrastructure and management.
The Pacific northwest and western mountain states contain the highest concentration of accessible wild hot springs, where naturally heated pools in river valleys and mountain settings attract visitors seeking a less structured experience than the managed geothermal attractions offer. Several destinations have developed resort spa infrastructure around geothermal resources, combining natural thermal bathing with accommodation and wellness facilities of varying ambition and quality.
Wild hot spring access requires research into current conditions and land access permissions as closures for restoration and management are common. Water temperatures vary considerably and checking before entering is essential. The most visited geothermal attractions within the national parks system require advance booking during peak season and timed entry is standard at the most celebrated sites.
Lists by region
National Park in United States
Yellowstone National Park
Geysers, wildlife and untamed wilderness
Congress set aside the park on March 1, 1872. It holds at least 10,000 geothermal features. About two thirds of the world's geysers are concentrated here. The Yellowstone Caldera measures about 72 by 45 kilometres and formed roughly 640,000 years ago. Steamboat is the tallest active geyser in the world.
National Park in Costa Rica
Arenal Volcano National Park
Lava Trails, Rainforest and Epic Views
Arenal rises 1,633 metres and erupted suddenly on 29 July 1968. Regular lava flows began after landslides in 1975. The eruptive period ended in October 2010 and the volcano has been quiet since. Its slopes form an important watershed for the Arenal Lake reservoir, which supplies hydroelectric power.
National Park in United States
Lassen Volcanic National Park
Majestic volcanoes rise over rugged wilderness
Lassen Peak, Cinder Cone and the land around them became a national park on 9 August 1916. Eruptions began in May 1914. Hot springs, fumaroles and mud pots remain active at Bumpass Hell and Sulphur Works. Warner Valley adds Boiling Springs Lake, Devils Kitchen and Terminal Geyser.
Town in Costa Rica
La Fortuna
Volcano Views, Hot Springs, Adventure
Tabacón Hot Springs lies at the base of Arenal Volcano near town. Its water comes from an underground river heated naturally by the volcano. Mixing with cold water sets pool temperatures from cold up to 105 degrees Fahrenheit. The resort stands on the site of the village of Tabacón, which an eruption destroyed in 1968.
State/Prefecture in United States
Wyoming
Wild West landscapes and natural wonders
Thermopolis takes its name from the Greek for hot city. The town claims the world's largest mineral hot spring, called the Big Spring, in Hot Springs State Park. An 1896 treaty with the Shoshone and Arapaho tribes keeps the springs free for the public. Yellowstone lies mostly in the northwestern corner of the state.
National Park in Dominica
Morne Trois Pitons National Park
Volcanic wonders in pristine rainforest
Water near the edge of the Boiling Lake measures 82 to 92 degrees Celsius. The Valley of Desolation has boiling mud ponds and small geysers. Sulphur gases limit plant life in that valley. The park became the first legally established national park in Dominica in July 1975. UNESCO listed it in 1997.
Landmark in United States
The Geysers
Majestic hot springs amid desert skies
The world's largest developed geothermal field lies in the Mayacamas Mountains. It spans Sonoma and Lake counties in California, about 72 miles north of San Francisco. Eighteen power plants have a nameplate capacity of 1,590 megawatts. The first plant opened in 1921 with 250 kilowatts to light a resort.
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