"Lake Blanche is one of the most popular hikes in the Salt Lake City area, not only because the walk is relatively short and the trailhead easy to get to, but because of the scenic beauty and the geologic attractions within the Lake Blanche Basin. Blanche and its two sister lakes, Florence and Lillian, sit in a high alpine basin that was dug out by a glacier during the last ice age.
Long straight scratch marks and deep polished grooves, etched out by the glacier, are still clearly visible on the stone surrounding the lakes. Picturesque Sundial Peak (10,320 ft.), which the Wasatch Mountain Club uses as its emblem, rises abruptly from the south shore of Lake Blanche, and Dromedary Peak (11,170 ft.) is only a mile to the southwest. Blanche, its two sister lakes, Dromedary Peak, and the Sundial are all part of Utah's 11,300-acre Twin Peaks Wilderness Area."