Western Tiger Lily or Columbian Tiger Lily (Lilium columbianum)
Liliaceae ~ Lily Family
Found from low elevation coastal forests (Douglas Fir to the north; Coast Redwood in the southernmost part of its range) to the subalpine in Washington and British Columbia (the northernmost part of its range). Compared to Lilium pardalinum, a lily with similar flowers, the tepals of L. columbianum reflex "half" way, so that the part of the flower connecting to the flower stalk is clearly in view.
Large showy lilies are in cultivation, and should never be picked or otherwise collected from the wild.
Do purchase from a nursery, and try them in your garden!