Liliaceae, Liliales. Prosartes: Gr., to append, from pendulous ovules of type species. Trachycarpa: Gr., rough-fruited.
Why Prosartes and not Streptopus? [from Jepson]: flowers 1-7 in terminal clusters (not 1(2) in leaf axils), without sharp bend at juncture of peduncle and pedicel.
ID from genus to species [from Flora of North America]: leaf margins moderately pubescent (not glabrous or short-pubescent); tepals lacking purple spots.
[ID with the FNA key would have been more clear if I had a photo of the ovary.]
I'm identifying this as Kellogg's Lily based on the apparently small whitish pink (dried) flowers (1st image). I'm thinking that Washington Lily should have much larger corollas, even after wilting. Del Norte County portion of Doe Flat Trail, at about 4,200 to 4,500 ft elevation; moist slope (mostly N-facing) on serpentine substrates.
Seems more likely than hookeri to me? No fruit. Growing under Doug firs in campground
30 flowering CAGR plants in meadows interspersed with low Brewer's oak shrubs. Other populations of CAGR are known on this property (and nearby CSNM-BLM) but this is a new one. Festuca roemeri abundant as well as Eriophyllum lanatum. Patches of Cirsium ciliolatum nearby, an endemic. Southern Oregon Land Conservancy holds a conservation easement on this private property which is bisected by Pilot Rock Road and the PCT.