IMG_4777_adj IMG_4776_adj IMG_4775_adj IMG_4774_adj IMG_4749_adj_trim IMG_4747_adj_trim Bedded Tuffs IMG_1153_adj IMG_1152_adj IMG_1151_adj IMG_1150 IMG_0204 Eureka Tuff Owens River Gorge IMG_4365_adj IMG_0513_adj 17-ignimbrite_vent_ig_adj 15-ignimbrite_vent_ig_adj 13-ignimbrite_vent_ig_adj 1-24-tuff@lassen-7-91_ig_adj 2-20-tuffs_near_midas-6-91_ig_adj Tuffs 2-18-tuffs_near_midas_adj IMG_4779_adj IMG_4780_adj IMG_5696_adj IMG_5706_adj Inyo National Forest IMG_5605 IMG_5606 Hickison Summit Petroglyphs IMG_5618 IMG_5619 Hickison Summit Petroglyphs IMG_5622 Fort Rock, Oregon, USA IMG_3518_adj IMG_3521_adj IMG_3522_adj IMG_3523_adj IMG_3524_adj IMG_3526_adj IMG_3527_adj IMG_3528_adj IMG_3529_adj