From Mayflower Spring the trail heads north and then turns to the east and joins up again with the old railroad bed. It crosses FR 132 and then just south of Railroad Tank the trail turns to the east and works its way over to FR 651, which is the entry to Pinegrove Campground. It crosses Highway 3 and climbs up past the Horse Lake Trailhead. It turns to the north and crosses Anderson Mesa, and then passes Horse Lake. It follows a two-track, turns to the west, and becomes a trail again. After crossing FR 129 the trail passes Vail Lake and Prime Lake, and then skirts around the Lowell Observatory. It passes by a trailhead near the observatory, then heads north and then west to Marshall Lake.
From Flagstaff, take the Lake Mary Road exit (339) off I-17 for ~20 miles, then turn right (west) on Mormon Lake Road (Highway 90). Follow this about 3 miles to an unmarked turnoff on the right. This two-track dirt road leads to Mayflower Spring (~0.4 miles).
Marshall Lake Trailhead
From Flagstaff, take the Lake Mary Road exit (339) off I-17 for 9 miles, then turn left (east) on FR 128 at the sign for Marshall Lake. Pass the observatory turnoff, then at 2.2 miles turn left before Marshall Lake (more of a marsh) and park at the AZT sign on the left. If you are coming from the south on Lake Mary Road, the Marshall Lake turnoff is 7.5 miles north of Pine Grove Campground.
This hike is listed as One-Way.
When hiking several trails on a single "hike", log it with a generic name that describes the hike. Then link the trails traveled, check out the example.
WARNING! Hiking and outdoor related sports can be dangerous. Be responsible and prepare for the trip. Study the area you are entering and plan accordingly. Dress for the current and unexpected weather changes. Take plenty of water. Never go alone. Make an itinerary with your plan(s), route(s), destination(s) and expected return time. Give your itinerary to trusted family and/or friends.