United States, California, Lassen, Lassen National Forest near area where Susan River flows through Clover Valley. Thinning unit near intersection of A-21 road and Silver Lake Road some miles south of Highway 44.
40.475 -121.0779
1784 meters (5852ft)
Mature, mixed-conifer forest (ca. 90 years old?) dominated by Pinus ponderosa. Pyrola restricted to patches of small woody debris accumulation caused by skid trails. Very shady habitat with sun flecks.