Chimaphila umbellata. Along the trail to Lily Lake, Sawtooth National Forest near Stanley, Idaho.
I noticed dozens of these Chimaphila umbellata, or Prince’s Pine, aka Pipsissewa, growing along the Grand Ridge trail out of Deer Park, at about 5000'. The plants have serrated leaves and small round pink flowers that weren't yet open. They were growing in the sun in soil covered in conifer needles.
Chimaphila (wintergreen; from Greek: cheima 'winter' and philos 'lover', hence 'winter lover') is a genus of five species of small, evergreen, flowering plants native to temperate regions of the Northern Hemisphere. They are classified in the family Ericaceae, but were formerly placed in the segregate family Pyrolaceae.