The retreating glaciers left many lakes, which are considered to be fishing paradises. The lakes include Gem Lake, Parker Lake, Waugh Lake, and Minaret Lake, but there are dozens of others. Hikers, backpackers, fishing enthusiasts, and snow skiers should be aware of the dramatic weather in the Sierra, especially above 9,000 feet in this part of the range. A few puffy clouds on the horizon can become a drenching thunderstorm in less than an hour. During storms, avoid open areas such as meadows, ridges, and mountaintops, and stay away from water and isolated trees.
Blizzards also develop rapidly any time of year, but especially in late fall, winter, and spring.
Carry extra food, parkas, and dry clothing when taking a trip of more than one day. The best time to hike the Ansel Adams Wilderness is from June through September. Some access roads close after the first snowfall in autumn and do not reopen until late May or June. From Lee Vining at Mono Lake, drive south on Highway 395 to one of three roads. The first is Road 158, also known as the North June Lake Junction, about 7 miles south of Lee Vining.