
John Muir also known as "John of the Mountains" and "Father of the National Parks", was an influential Scottish-American naturalist, author, environmental philosopher, botanist, zoologist, glaciologist, and early advocate for the preservation of wilderness in the United States of America.

John Muir's Birthplace, in Dunbar, East Lothian, Scotland, is a museum run by East Lothian Council Museums Service as a centre for study and interpretation of the work of the Scottish-American conservationist John Muir.

Camp Muir, named for the naturalist John Muir, is a high-altitude refuge for climbers in Mount Rainier National Park in Washington, accessed through the Paradise Entrance. The shelters comprising the camp are situated at a 10,188 ft (3,105 m) elevation between the Muir Snowfield and the Cowlitz Glacier on Mount Rainier. Camp Muir is the most-used base camp for those attempting to climb to the mountain's summit. Camp Muir is between the Nisqually and Paradise Glaciers.

Fountain Lake Farm, also known as the Wisconsin Farm Home of John Muir, is a historic farm and National Historic Landmark in rural Montello, Wisconsin, United States. The landmark covers part of the farm that was the home of pioneering conservationist John Muir from 1849 to 1856 and 1860 to 1862. Covering 80 acres (32 ha), the landmarked area is partly private property and partly in John Muir Memorial County Park, a minimally developed public park.

The John Muir National Historic Site is located in the San Francisco Bay Area, in Martinez, Contra Costa County, California. It preserves the 14-room Italianate Victorian mansion where the naturalist and writer John Muir lived, as well as a nearby 325-acre tract of native oak woodlands and grasslands historically owned by the Muir family. The main site is on the edge of town, in the shadow of State Route 4, also known as the "John Muir Parkway."

The Harriman Alaska expedition explored the coast of Alaska for two months from Seattle to Alaska and Siberia and back again in 1899. It was organized by wealthy railroad magnate Edward Harriman. Harriman brought with him an elite community of scientists, artists, photographers, and naturalists to explore and document the Alaskan coast.

The Sierra Club is an environmental organization with chapters in all 50 United States, Washington D.C., and Puerto Rico. The club was founded on May 28, 1892, in San Francisco, California, by the Scottish-American preservationist John Muir, who became the first president, as well as the longest serving president at approximately 20 years in this leadership position. The Sierra Club operates only in the United States. Sierra Club Canada is separated from the Sierra Club.

The John Muir Trail (JMT) is a long-distance trail in the Sierra Nevada mountain range of California, passing through Yosemite, Kings Canyon and Sequoia National Parks. From the northern terminus at Happy Isles in Yosemite Valley and the southern terminus located on the summit of Mount Whitney, the trail's length is 213.7 miles (343.9 km), with a total elevation gain of approximately 47,000 feet (14,000 m). For almost all of its length, the trail is in the High Sierra backcountry and wilderness areas. For about 160 miles (260 km), the trail follows the same footpath as the longer Pacific Crest Trail. It is named after John Muir, a naturalist.

The John Muir Trust (JMT) is a Scottish charity, established in 1983 to conserve wild land and wild places for the benefit of all. The Trust runs an environmental award scheme, manages several estates, mainly in the Highlands and Islands of Scotland and campaigns for better protection of wild land. In 2017, it took on a lease to manage Glenridding Common in the English Lake District.

The John Muir Way is a 215-kilometre (130 mi) continuous long distance route in southern Scotland, running from Helensburgh, Argyll and Bute in the west to Dunbar, East Lothian in the east. It is named in honour of the Scottish conservationist John Muir, who was born in Dunbar in 1838 and became a founder of the United States National Park Service. The route provides a coast-to-coast route across Scotland, linking Muir's birthplace with Scotland's first national park, Loch Lomond and The Trossachs, and Helensburgh, from where he left Scotland for the United States. It is suitable for walkers and cyclists although some sections are on rougher terrain and may not be suitable for road bicycles.