Trail alerts
Closures, snow, fords, fire and wildlife notices affecting the John Muir Trail. The sources are the agencies that manage the corridor: Yosemite National Park, Inyo National Forest, Sierra National Forest, and Sequoia & Kings Canyon National Parks.
Alert list last updated . This page is a convenience, not an official source — always confirm with the managing agency before you commit to a plan.
No alerts are listed here. That is not the same as an all-clear: this site does not yet gather notices from the agencies automatically, so an empty list means nothing has been entered, not that nothing is happening on the trail. Check the official pages below before you go.
Where these come from
Alerts will be read from the agency sources below, cached at the edge and served to this page by the Trailguide API. That job does not exist yet, so this page can only show what has been entered into the site by hand — and nothing written here is ever an agency's own words unless it is quoted from one of these pages. Go to the source.