There is a Glass Mountain northeast of Lassen, south of Lava Beds N.M. and west of Tionesta. Check on the website for Volcanic Legacy Scenic Byway
There is no large, exposed mound of selenite crystals that i am aware of at Lassen Park.
No, there isn't, but there is a volcanic activity
No
Not that I am Aware of.
There is a Glass Mountain in Modoc National Forest near Medicine lake.
It has a volcano mount
Huh?
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