The hike starts at Adirondack Loj in the High Peaks Information Center parking lot. From there, follow the signs for Phelps Mountain/Mt. Marcy. The trail to Phelps Mountain follows the Marcy trail for the first three miles.

The first two miles to Marcy Dam are relatively flat, with the elevation gain picking up in the next mile after. The trail will eventually cross Phelps Brook. In early winter, when the brook hasn't frozen over enough yet, you can cross at the high water bridge (about a quarter of a mile before the foot crossing, and well-signed). Otherwise, the regular foot crossing is fine once winter sets in or in summer months if the water level isn't too high.

After third mile, you will come to the Phelps Mountain junction. From here, it's one mile to the summit. Be aware though, that most of the elevation gain is in the final mile.

In the winter, bring microspikes or crampons. If snow accumulation is 8 inches or more, it is a requirement in the High Peaks Wilderness to have snowshoes with you AND wear them. You can and will be fined by a ranger if you don't have them! The final mile can me very icy at times, so traction devices are essential.

The view at the summit is phenomenal, with nearby Algonquin Peak, Mt. Marcy, and Colden Mountain being right in front of you.