Mill A Basin Trail is a 3.3 mile lightly trafficked out and back trail located near Salt Lake City, UT that features beautiful wild flowers and is rated as difficult. The trail offers a number of activity options and is accessible year-round.
cross country skiing
Directions from Salt Lake: Follow Big Cottonwood Canyon Road (7000 South Wasatch Blvd.) about 8.2 miles up the canyon to Butler Fork Trailhead (north side of the road, left). Take Butler Fork Trail about 1/2 mile to junction with Mill A Basin Trail and turn west (left).
For a hike, it is enjoyable and challenging although I question it being classified as "hard." Lots of low vegetation and wild flowers, beautiful smells and camo for animals. I walked up on some deer and a young moose and a note was left that bears had been on the trail the day before. Trail is smooth, good for running. Hikers may want to wear long pants and sleeves due to all the vegetation and swarms of flies. The views are beautiful, didn't see one other hiker on a Friday afternoon... Enjoy!
Hiked this section as park of a loop starting and ending in Emigration canyon
This trail's Overview should be clarified: The "3-mile Out and back" is from the Butler Fork trailhead. About a 1/2 mile up Butler, you stay left to catch Mill A that meets up with the Desolation Trail another mile up. Since the Mill A Basin trail is really a short section of the Desolation Trail that wraps around the south side Mount Raymond, it can also be accessed from the Mill B North Fork trailhead for a longer route.