John Muir National Historic Site is a National Historic Site in California. The NPS currently lists 1 active alert, 0 campgrounds and 1 visitor center, and no entrance fee.
John Muir Home at the John Muir National Historic Site · Photo: NPS Photo (via nps.gov)
About the park
“John Muir’s life was a tapestry of roles—fruit rancher, family man, writer—each interwoven with his deep love for nature. As one of America’s most influential naturalists, Muir was more than just an observer of the wilderness; he was its fiercest advocate.”
Active alerts
1
Closures
0
Campgrounds
0
Visitor centers
1
Current alerts and closures
1 active NPS alert as of Oct 28, 2026: 0 closures, 0 danger, 0 caution and 1 information.
Information
Martinez Adobe
The Martinez Adobe, located on the western edge of John Muir’s historic orchard, is currently closed due to structural damage. It is unknown when the public will be able to enter the structure. The Muir/Strentzel mansion remains open to visitors.
Mount Wanda is part of the John Muir National Historic Site, but is not located on the main property. It is short drive to reach the parking lot for the Mount Wanda trail entrance. Directions can be found on the website.
The main park site and visitor center are open Tuesday through Saturday from 10:00 A.M. to 5:00 P.M. We are closed on Sunday and Monday.
John Muir National Historic Site
Day
Hours
Monday
Closed
Tuesday
10:00AM - 5:00PM
Wednesday
10:00AM - 5:00PM
Thursday
10:00AM - 5:00PM
Friday
10:00AM - 5:00PM
Saturday
10:00AM - 5:00PM
Sunday
Closed
Weather: The Mediterranean climate of Martinez features hot, dry summers with lower temperatures near 60º F and upper temperatures near 100º F. The heat gives way to cool, rainy winters with lows near 45º F and highs near 75º F.
Data: National Park Service (NPS) Data API, U.S. Department of the Interior (developer.nps.gov). This product uses the NPS Data API but is not endorsed or certified by the National Park Service. The National Park Service and the U.S. Department of the Interior do not endorse OpenParks. Photos are NPS images shown with their original credits; park descriptions are short excerpts credited to the NPS. Always confirm current conditions on nps.gov before you travel.