• Rainbow over Half Dome

    Yosemite

    National Park California

There are park alerts in effect.
hide Alerts »
  • Road Closures Due to El Portal Fire

    The Big Oak Flat Road between Crane Flat and the El Portal Road is temporarily closed. There is no access to Yosemite Valley via the Big Oak Flat Road or Highway 120. Tioga Road is open and accessible via Big Oak Flat and Tioga Pass Entrances. More »

  • Campground Closures Due to Fire

    Crane Flat, Bridalveil Creek, and Yosemite Creek Campgrounds are temporarily closed. More »

  • Yosemite National Park is Open

    Yosemite Valley, Glacier Point, and Wawona/Mariposa Grove areas are open and accessible via Highways 140 and 41. Tioga Road is not accessible via Highways 140 and 41 due to a fire.

Study the Scientist: A Botanist

Botanist Martin Hutten, who is the manager of Yosemite National Park's invasive plant program, joined the park in 2008 after working at Craters of the Moon National Monument & Preserve in Idaho and Olympic and North Cascades national parks in Washington. (4 minutes 23 seconds)
 
(object placeholder)
 

View Yosemite's other "Study the Scientist" videos to watch resource rangers describe their jobs.

  • See wildlife biologist Sarah Stock, who specializes in ornithology
  • See social scientist Bret Meldrum, who studies the quality of a visitor's park experience
  • See fire archeologist Jun Kinoshita, who functions as a firefighter and an archeologist
  • See historical architect George Jaramillo, who preserves the park's historical structures
  • See hydrologist Jim Roche, who protects water resources, including Wild & Scenic Rivers

Did You Know?

Cars and campers in a meadow in Yosemite Valley.

Unrestricted camping is no longer allowed in Yosemite Valley because of damage it causes. The placement of campgrounds and campsites has changed over the past 75 years in response to a growing understanding of river dynamics, geologic hazards, and the park's natural and cultural resources.