• Rainbow over Half Dome


    National Park California

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  • 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.

Research and Studies

A plethora of ongoing scientific research abounds at Yosemite National Park, from declining animal species studies to invasive plant removal strategies to human carrying capacity issues.

Yosemite has expanded its resources management and science staff to more than 100 people. The park serves as a public meeting place for scientific symposiums--topics include fire science, hydroclimatology, archeology, and bird surveys--with scientific papers presented at the monthly Yosemite Forum and in-depth research in the Yosemite Science publication, launched winter 2011. The park also processes hundreds of research permits every year for its staff and outside interests. The park is proud to sponsor the first park-based social science branch, which serves as a model for ground-breaking work in visitor use and user capacity issues.

Learn more about Yosemite's research through the following:

GIS in the Park: Geography is both a natural and a cultural science. View national GIS data sets, including from Yosemite National Park, on an NPS Data and Information online clearinghouse. See nationwide GIS Data and other information covering topics from geology to fire to soils.

Planning: Yosemite's staff researches and presents many of its projects for public review.

Visitor Use: Social scientists study how humans interact with the landscape. View comprehensive reports on summer and winter visitor use. Or, get quick answers to some of the most common questions regarding park statistics. How many visitors come to Yosemite each year? How many miles of trails exist in the park? What is the park's budget? Also, check out our natural resource statistics, including the name of the park's tallest peak and just how tall Yosemite Falls is.

Permit for Scientific Research: Yosemite's pristine environment provides a scientific laboratory for many critical issues studied by top scientists around the world. Learn what you need to do to propose a research study in the park and obtain a permit.

View the park's History & Culture section to learn about people, places, stories, collections, and preservation.

Did You Know?

Ranger talking to kids

Yosemite Conservancy’s signature project in 2013 is Youth In Yosemite. This project encompasses 12 individual youth programs that focus on education, mentoring, and wilderness exploration. One of the programs funded by Yosemite Conservancy is the Junior Ranger program, a program that benefits over 27,000 children annually. More...