• View of Half Dome and Washington Column in Yosemite Valley

    Yosemite

    National Park California

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  • Tioga Road is Closed

    The Tioga Road (Highway 120 through the park) is closed due to snow; there is no estimated opening date, although it usually opens sometime in May. More »

  • Rain and snow is forecast Friday and Saturday

    The Glacier Point Road is closed and will be reevaluated on Sunday. Tire chains may be required; bring and be prepared to use them if visiting this weekend. Check current road conditions by calling 209/372-0200 (then dial 1 then 1).

Yosemite Ranger Notes

About This Blog

Ranger-naturalists have been interpreting the natural and cultural resources of Yosemite for park visitors for nearly a century. In this blog, some of Yosemite's park rangers share recent observations from around Yosemite.

All posts are shown below, or you can view posts by topic.

Bird Banding Bonanza!

July 26, 2013 Posted by: JR - MAPS Avian Technician

It's been a hot, busy summer so far during this year's field season of bird banding in Yosemite. Banding occurs at six stations clustered on the west slope of Yosemite, which are each operated once every ten days as part of the Monitoring Avian Productivity and Survivorship (MAPS) program. Data are collected at over 300 MAPS stations across the U.S. and Canada every summer between May and August, and scientists and land managers use these data to look at demographic trends in songbird populations both locally and continent-wide.

 

Did You Know?

El Portal Boulder Bar

At the east end of El Portal, just west of Yosemite National Park’s boundary, changing river gradients, glacial history, and powerful floods have created a boulder bar with boulders much larger than typically found in such deposits. This is no ordinary boulder bar, however, for it contains massive boulders over a meter in diameter and weighing many tons.