The entire northern Sierra from Mt Lassen to Carson Pass.
On a clear day (usually winter) from Mt Vaca one can get a good glimpse of the entire northern Sierra Nevada range from Mt Lassen to Yosemite. This pano shows Lassen on the far left and continues south past the Crystal Range to near Carson Pass or so. Also in view from Vaca include much of the Snow Mtn area, Cache Creek/Blue Ridge, Mt Tam, the Bay Area peaks, Mt Diablo etc.