description Panum Crater Overview
Panum Crater is a rhyolitic volcanic feature near the southern shore of Mono Lake in eastern California. It consists of a tuff ring surrounding a central lava dome and formed through explosive interaction between rising magma and groundwater, followed by the extrusion of viscous rhyolite. As part of the Mono Craters chain, it preserves deposits and landforms that illustrate both explosive and dome-building phases of a young eruption.
insights Ranking position
Panum Crater ranks #18 of 118 in the Tuff Cone ranking, behind Molokini, ahead of Vulcan Island (Taal Lake).
help Panum Crater FAQ
Is Panum Crater a crater or a lava dome?
It contains both a tuff ring and a central rhyolite lava dome. Explosive interaction between rising magma and water formed the outer ring, while later viscous lava built the dome inside it.
How old is Panum Crater?
Panum Crater formed roughly 640 years ago, making it one of the youngest volcanic features in the Mono Craters chain. It lies near Mono Lake in eastern California.
What kind of rock can visitors see at Panum Crater?
The central dome contains rhyolite, including abundant obsidian and pale pumice. Trails expose both glassy volcanic material and fragments produced during explosive eruptions.
Can you hike inside Panum Crater?
Yes, established routes include a trail around the rim and another leading toward the central plug. The terrain contains loose pumice and sharp obsidian, so visitors should remain on designated paths.
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