The Eastern Sierra Nevada mountains can easily take someone's breath away, but that thought gets more literal at the Little Lakes Valley Trail on the way to Mack Lake. Luckily, Mack Lake is the first one up. Mack Lake sits tucked between Yosemite and Sequoia & King Canyon National Park in John Muir Wilderness, part of Inyo National Forest. Many trails on this formidable side of the Sierra can intimidate hikers and anglers, making Mack Lake a nice access point for altitude acclimation. The ride from South Lake Tahoe takes about 3 hours.