Fire restrictions return to California’s John Muir Wilderness

The John Muir Wilderness enters summer carrying both postcard scenery and a policy burden: 584,000 acres of granite, passes and high-country basins stretched along the Sierra Nevada crest, crossed by two of the West’s best-known trails and pressed by millions of nearby visitors. That combination has made the area one of the largest roadless landscapes in the lower 48 states, and one of the most closely watched when fire danger rises.

The wilderness runs from near Mammoth Lakes southeasterly for about 30 miles before splitting around the boundary of Kings Canyon National Park toward Crown Valley and Mt. Whitney, where elevations climb from about 4,000 feet to 14,496 feet. It is contiguous with Kings Canyon and Sequoia national parks, the Ansel Adams Wilderness, the Golden Trout Wilderness and other protected lands. Management is split roughly evenly between the Sierra National Forest and the Inyo National Forest, with the Inyo side alone stretching 165 miles near the California-Nevada border and covering almost 2 million acres.

That scale brings heavy use. The U.S. Forest Service says about 30 million people live within a few hours’ drive, and access routes to Sequoia and Kings Canyon national parks, along with the John Muir Trail and Pacific Crest Trail, pass through the wilderness. The pressure is why campfire and wilderness-use restrictions have been a recurring feature in recent years. On the Sierra National Forest side, a wilderness campfire restrictions order took effect June 18, 2024, and ran through June 18, 2026. On the Inyo National Forest side, a separate wilderness-use restrictions order took effect June 18, 2025, and runs through June 18, 2027.

The policy stakes reach beyond one mountain basin. The John Muir Wilderness sits inside the long conservation legacy of the Wilderness Act, signed September 3, 1964, and John Muir’s own organizing, including the 1892 founding of the Sierra Club. That history helped lock in protection for some of California’s most dramatic public land, but it also left managers with a permanent balancing act: keep the country open to the public, limit the fire risk that comes with crowds, and protect a landscape that is both fragile and heavily loved.