Lodgepole Chipmunk (Tamias speciosus), Tuolumne Meadows visitor center, Tuolumne County, California - 10 September 2012. There are six species of chipmunks (Tamias sp.) in Yosemite and they are fairly similar in appearance - this is my tentative identification based on the overall coloration and lack of a darker lateral body stripe below the white lateral stripe. Corrections welcome.