Snow!

(L to R): Cole, Jill, & Jack on a surviving patch of snow, off the old Jeep trail to Leavitt Lake Pass in the Sierra Nevada, California. Elevation here is about 10,250 ft (3124 m). The well defined path is a use path to the snowfield--the snowfield is persistent enough it shows up on the USGS 7.5' topo! (Pickel Meadow.)