![A lava vent in Mushpot Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381850.eNgLqUPK.jpg) A lava vent in Mushpot Cave in Lava Beds National Monument |
![Brown lava mineral deposits on the walls of Mushpot Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381851.UCx7PARX.jpg) Brown lava mineral deposits on the walls of Mushpot Cave in Lava Beds National Monument |
![Ferns growing near the entrance to Mushpot Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381852.Dq3ZtAsY.jpg) Ferns growing near the entrance to Mushpot Cave in Lava Beds National Monument |
![Collapsed ceiling in Blue Grotto Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381853.Q1ItwMXf.jpg) Collapsed ceiling in Blue Grotto Cave in Lava Beds National Monument |
![Area near the entrance to Blue Grotto Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381854.UAssH2QU.jpg) Area near the entrance to Blue Grotto Cave in Lava Beds National Monument |
![Mineral deposits in Blue Grotto Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381855.cuSwZTSh.jpg) Mineral deposits in Blue Grotto Cave in Lava Beds National Monument |
![Smooth lava formations in Blue Grotto Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381856.F1xES0Ng.jpg) Smooth lava formations in Blue Grotto Cave in Lava Beds National Monument |
![Lava flow formations in Blue Grotto Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381857.6fjIRxTp.jpg) Lava flow formations in Blue Grotto Cave in Lava Beds National Monument |
![View through entrance of Paradise Alley Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381858.wnaNq2pO.jpg) View through entrance of Paradise Alley Cave in Lava Beds National Monument |
![Ceiling of Paradise Alley Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381859.ci9j5265.jpg) Ceiling of Paradise Alley Cave in Lava Beds National Monument |
![Northern Sagebrush Lizard in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381860.aYA0iBfQ.jpg) Northern Sagebrush Lizard in Lava Beds National Monument |
![Rocky path in Ovis Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381861.UtDf0ZJH.jpg) Rocky path in Ovis Cave in Lava Beds National Monument |
![Entrance to Ovis Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381863.kjk3uHeX.jpg) Entrance to Ovis Cave in Lava Beds National Monument |
![Lava rocks outside Ovis Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381865.h17PrjV7.jpg) Lava rocks outside Ovis Cave in Lava Beds National Monument |
![Tree growing directly above the entrance to Symbol Bridge Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381866.Ey6fWt9a.jpg) Tree growing directly above the entrance to Symbol Bridge Cave in Lava Beds National Monument |
![The entrance to Symbol Bridge Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381867.xUCFkIDS.jpg) The entrance to Symbol Bridge Cave in Lava Beds National Monument |
![Frozen pond in Heppe Ice Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381897.dlpNzdr9.jpg) Frozen pond in Heppe Ice Cave in Lava Beds National Monument |
![Ice from dripping water in Heppe Ice Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381868.ENgr1DfW.jpg) Ice from dripping water in Heppe Ice Cave in Lava Beds National Monument |
![Ice formations in Heppe Ice Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381869.bw0VzFfp.jpg) Ice formations in Heppe Ice Cave in Lava Beds National Monument |
![The frozen pool in Heppe Ice Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381870.MHRjV6jB.jpg) The frozen pool in Heppe Ice Cave in Lava Beds National Monument |
![Petroglyphs at Symbol Bridge Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381871.gbzSobRP.jpg) Petroglyphs at Symbol Bridge Cave in Lava Beds National Monument |
![Indian drawings at Symbol Bridge Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381872.B11slZdV.jpg) Indian drawings at Symbol Bridge Cave in Lava Beds National Monument |
![Petroglyphs at Symbol Bridge Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381873.LaAVG9oN.jpg) Petroglyphs at Symbol Bridge Cave in Lava Beds National Monument |
![Indian petroglyphs in Symbol Bridge Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381874.w3FEVgH6.jpg) Indian petroglyphs in Symbol Bridge Cave in Lava Beds National Monument |
![Looking toward the entrance to Skull Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381881.0Mwwrugu.jpg) Looking toward the entrance to Skull Cave in Lava Beds National Monument |
![Rock formations on the ceiling of Skull Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381882.JxmQOxJC.jpg) Rock formations on the ceiling of Skull Cave in Lava Beds National Monument |
![Passage in Valentine Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381883.1YcTsF7d.jpg) Passage in Valentine Cave in Lava Beds National Monument |
![Glowing cave formation in Valentine Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381884.pMZ4cqRn.jpg) Glowing cave formation in Valentine Cave in Lava Beds National Monument |
![Floor in Valentine Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381885.pNjrvg7e.jpg) Floor in Valentine Cave in Lava Beds National Monument |
![Smooth walls in Valentine Cave in Lava Beds National Monument](https://a4.pbase.com/g10/17/606817/3/165381886.upl4rzEb.jpg) Smooth walls in Valentine Cave in Lava Beds National Monument |