Panum Crater

Panum Crater is a volcanic formation in Mono County featuring a network of lava domes, obsidian deposits, and pumice beds. The varied geological layers visible throughout the site reveal different phases of eruption that created this natural landmark.

The crater formed between 1325 and 1365 through violent volcanic explosions. This eruption was the last in the Mono-Inyo Craters chain, ending a long period of volcanic activity in this region.

The crater held meaning for local Native American communities as a powerful reminder of nature's forces. Visitors walking through the landscape today can sense how the natural world shaped the lives and beliefs of people in this region.

Bring plenty of water as the terrain is exposed and dry throughout the area. Sturdy footwear is recommended since the marked trails cross uneven volcanic rock that can be slippery or sharp.

The lava here has an unusual composition that created distinctive needle-like spires. These formations developed because thick lava was forced upward through cracks in the dome under pressure, leaving behind pointed shapes as it hardened.

GPS coordinates: 37.92954,-119.04567

Latest update: December 11, 2025 11:03