roof_breakdown transit_in_cave rm_w_sandy_floor sandy_floor ledge_in_rm 22-floor_edge-r peeling_edge hummocky_floor ceiling_effluorescence ledge&drips subway bench_along_wall B_Walden@entrance(T_Billings) jctn_rm_wall(B_Walden) surveying_in_jctn_rm wall_detail-2-r drip_detail wall_detail-2 sand_fill_detail wall_detail breakdown_in_passage jctn_in_youngs_cave-r entrance_to_jctn_rm(Wayne_Singer) rm_w_breakdown main_passage 23-floor_edge youngs_cave_gallery 03-blacksmith_fk_sxn_adj 04-garden_city_roadcut_adj 06-logan_cyn_E_adj 05-garden_city_roadcut_adj 07-samples_in_GC_adj 08-FBSC_sxn_adj 09-st_charles_sm&357_adj 10-franklin_basin_sxn_adj 11-franklin_basin_sxn_adj 28-CDR_sxn_adj 29-Carrara_Desert_Ra_adj 29-Carrara_Desert_Ra_ig_adj 29-Carrara_sxn_adj 30-Carrara&BK_adj 30-DR_view_N_adj 30-DR_view_N_ig_adj 31-Carrara_adj 32-Carrara_adj