Lava cascade in Thunderbolt Distributary of Labyrinth Cave system

Caves easily accessible from Cave Loop Road-Continued
Ovis Cave and Paradise Alleys-Continued
Paradise Alleys-Continued
Upper level 31
Former skylight 32
Natural Bridge area 32
Large collapse trenches 32
Lava-tube caves in the Natural Bridge area 33
Caves beneath Natural Bridge 33
Gail Cave 34
Juniper Pole Cave 34
Sunshine Cave 34
Battered Sherman Cave and Sunshine Arch 35
Prohibition Cave 37
Hercules Leg and Juniper Caves 37
Features near entrance 37
Middle and lower parts of Hercules Leg Cave 38
Juniper Cave 38
Relation to Hercules Leg Cave 38
Floor jam at the junction of Hercules Leg tube and Upper Juniper
Tube 38
Sentinel Cave 39
Features near upper entrance 40
Middle level of Sentinel Cave 40
Tubes intersecting Sentinel Cave 40
Lower entrance and downstream extension 41
Other caves in or near the monument 42
Valentine Cave 42
Surface features near entrance 43
Schollendomes 43
Upper part of Valentine Cave 43
Two central breakdowns 44
Downstream distributaries 45
Tickner and Berthas Cupboard Caves and Tickner Chimneys 45
Tickner Cave 46
Berthas Cupboard Cave 51
Tickner Chimneys 53
Merrill Ice Cave, Bearpaw Cave, and nearby collapse trenches 53
Merrill Ice Cave, entrance level 53
Merrill Ice Cave, ice level 55
Bearpaw Cave 55
Collapse trenches 56
Hydraulic rampart 56
Kirk Whites and Beaconlight Caves 57
Kirk Whites Cave 58
The Igloo 58
Beaconlight Cave 58
Skull Cave 59
Upper level 59
Lower level 60
Red tuff and volcanic breccia 62
Ice in Skull Cave 63
Boulevard, Balcony, and Sharks Mouth Caves 63
Boulevard Cave 63
Boulevard entrance chamber and East Branch of Balcony Cave 64
Balcony Cave 65
VI
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