Cecret Lake Trail in Alta, Utah
Little Cottonwood Canyon is extraordinarily beautiful in the fall. Alta, UT is a great town to explore at the top of the canyon. Cecret Lake Trail is 1.7 miles out and back and is good for all ability levels. I recommend going early in the morning or later in the evening to avoid the crowds. There isn't a lot of shade along the shore of the lake, so remember a hat and sunglasses!