UPDATE and a NOTE:

Update: Shortly after I posted this, my reports on highway 120 through the park via the Tuolumne Meadows area  were rendered incorrect/outdated by way of an updated announcement from the park service as follows:

“Beginning at 12:00pm on Wednesday, August 28th, Tuolumne Meadows and the High Sierra will only be accessible via Highway 120 East through Lee Vining.  The Tioga Rd/Hwy 120 East will be temporarily closed between White Wolf Lodge and the Big Oak Flat Rd./Hwy 120 West at Crane Flat; the closure is estimated to be 3 to 4 days.  Tuolumne Meadows Lodge, the High Sierra Camps, and Tuolumne Meadows and Porcupine Flat campgrounds all remain open.”

Basically, this means that you will not be able to use highway 120 as a route across the Sierra until further notice. I’m not surprised – in fact, I’ve been somewhat surprised that the road remained open this long. Apparently the following URL is also a good source of updates from the park: http://www.yosemitepark.com/yosemite-fire-update.aspx

My original post follows…

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A few people have asked me for information about the “Rim” fire which started not far from Groveland near highway 120, and which is currently burning along the northwest boundary of Yosemite National Park, generally moving east and north toward the highway 108 area. While I know much of this area fairly well from many years (decades, actually) of visits, I do not have any inside information about the fire itself, nor am I an expert on wildfires. One good source of (limited but objective) information is the Stanislaus National Forest Rim Fire Incident web page. A map on this page is a quite amazing source of information, especially when combined with some familiarity with the area and a reading of various written reports. (The version on the main page seems to be based on Google Maps, and allows you to scroll around and zoom in.) Lots of folks who live and work in the area are sharing updates on the usual social media sites. The Mariposa Gazette is another local news source.

The fire started on August 17 more or less midway between Groveland and the  northwest park entrance and not far off of the highway 120 corridor near the Rim of the World area overlooking the canyon of the Tuolumne River. (Highway 120 is a common route for entry to the park from the west and northwest, and it connects via Tuolumne Meadows and Tioga Pass to the east side of the Sierra at the town of Lee Vining.) The spread of the fire at first was somewhat quick, which is no surprise given the extremely dry conditions in the Sierra following a second very dry winter and almost no real precipitation since late 2012. Then, between about August 20 and 23, the fire exploded, expanding  very quickly to cover a huge area generally to the east and north of the starting point, with the fire generally racing northeast but also spreading to the north and south. Continue reading About the Yosemite “Rim” fire… and more →