Tioga & Glacier Point Roads Closed for the Winter
The Tioga Road (Highway 120 through the park) and Glacier Point Road are closed due to snow; they usually reopen late May or June. You can check on current road conditions by calling 209/372-0200 (press 1 then 1). More »
Study the Scientist: A Hydrologist
Hydrologist Jim Roche manages Yosemite's water quality monitoring program and works to protect the park's water resources, including two Wild & Scenic rivers: the Merced and the Tuolumne rivers. He came to Yosemite from Death Valley National Park in 2003 and had worked previously in Yellowstone and Great Basin national parks, Big Cypress National Preserve, and as a Peace Corps volunteer in Gabon, Central Africa. (3 minutes 20 seconds)
View Yosemite's other "Study the Scientist" videos to watch resource rangers describe their jobs.
Did You Know?
Congress designated the Merced River as Wild and Scenic in 1987. The National Park Service manages 81 miles of the Merced River, encompassing both the main stem and the South Fork in Yosemite National Park and the El Portal Administrative Site. More...