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) roof_breakdown-2 subway_jctn_roof_breakdn(B_Walden) jctn_rm(Wayne_Singer) jctn_rm_wall_1m(B_Walden) 20-ceiling_drops main_passage-sandy_floor-2-r main_passage-sandy_floor-2 wall_rm stake&passage main_passage-sandy_floor effluorescence breakdown_in_passage-2 sandy_floor&breakdown gallery_view-r B_Walden@entrance(T_Billings) bench_along_wall subway ledge&drips ceiling_effluorescence hummocky_floor peeling_edge 22-floor_edge-r ledge_in_rm sandy_floor rm_w_sandy_floor transit_in_cave roof_breakdown roof_breakdown-r 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