One of the prettier lakes in the wilderness. At 6 miles from the trailhead, this is a popular overnighter.
The first three or four miles follow the creek up a forested drainage. About a mile from the lake the trail enters a pretty meadow. This is the junction with the Little Johnson Lake trail. Stay left, climbing up some switchbacks. At the top the terrain becomes rocky, and the lake is revealed in a pretty little cirque. (Lower Phyllis Lake is a few hundred feet below.) The trail skirts the southern shore where there are a few campsites.
This is an excellent stop on a loop hike via Johnson Lake. From Phyllis Lake the trail climbs a rocky ridge over a pass before dropping into a spectacular meadow with a pretty stream running through it. There is a fantastic campsite here. Johnson Lake is a few easy miles from here, then it’s 5 miles back to the trailhead.
From Phillipsburg drive 5 miles south on state highway 1. Turn right onto highway 38. Drive about 6 miles, then turn left onto Moose Lake Road. Drive 15 miles up this good gravel road to the trailhead. You will pass Moose Lake and Project Vote Smart on the way. The trailhead has plenty of parking, horse facilities, and an outhouse.