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 »
Visitor Use Research and References
Below are links to reports and field monitoring guides
Field Monitoring Guide: This guide is updated dynamically instead of on an annualy basis, with the latest version available online. [4.6 MB PDF]
General Visitor-use References
Leung, Y.; Newburger, T.; Jones, M.; Kuhn, B.; & Woiderski, B., (2010, Nov. 20). Developing a Monitoring Protocol for Visitor-Created Informal Trails in Yosemite National Park, USA. Environmental Management, ISSN: 0364-152X, DOI: 10.1007/s00267-010-9581-4. pp. 1-14. [Download 609 kb PDF online]
Pettebone, D.; Newman, P.; and Lawson, S.R. (2010, Sept. 24). Estimating Visitor Use at Attraction Sites and Trailheads
Lawson, S.; Newman, P.; Choi, J.; Pettebone, D., & Meldrum, B. (2009). Integrated Transportation and User Capacity Research in Yosemite National Park: The Numbers Game. Transportation Research Record: Journal of the Transportation Research Board. DOI: 10.3141/2119-11. pp. 83-91. [2.1 MB PDF]
Did You Know?
In 1984, 83 miles of the Tuolumne River were added to the Wild and Scenic Rivers System by Congress with an amendment to the Wild and Scenic Rivers Act. This included 54 miles of the river within Yosemite National Park.