
Formations by Asignoflife Photo

Arnold Rim Trail by Jill Clardy

Stalactites by ianloic

Stalactites by ianloic

Stalactites in Black Chasm Cavern, Volcano, California by davidcmc58

Stalactites & Helictites by ianloic

BiancaTheBullDog_2026 by bjarne.winkler

cavern by JiayiYoung

Scamp_2015 by bjarne.winkler

A PRETTY LITTLE LAKE by Burlingamebarley

cavern by JiayiYoung

cavern by JiayiYoung

Drapery Stalactites by El Cobrador

Black Chasm Cavern by ray_explores

Black Chasm Cavern, National Natural Landmark by Steve W Lee

Black Chasm Cavern by Steve W Lee

HeyBullDog_2029 by bjarne.winkler

Black Chasm by ianloic

Black Chasm Cavern by Steve W Lee

DogWantsToPlay2034 by bjarne.winkler

cavern by JiayiYoung

Helictites & Stalactites by ianloic

Helictites form along cracks in the rock by ianloic

Black Chasm Cavern - Thin strands made of stone by MathTeacherGuy

Black Chasm Cavern - flowstone teeth (2) by MathTeacherGuy

Black Chasm Caverns by Tom Coates

Railroad Flat by M. Rhodes Photography

Black Chasm Cavern - soda straw rock formations by MathTeacherGuy

Black Chasm Cavern - mysterious shapes by MathTeacherGuy

Black Chasm Caverns by Tom Coates

Black Chasm Cavern by Tom Coates

Black Chasm Caverns by Tom Coates

Black Chasm Caverns by Tom Coates

Helictites form along cracks in the rock by ianloic

Black Chasm Cavern - flowstone teeth (3) by MathTeacherGuy

speleothem 2 by fzx_is_phun

DOS05-045 by mudsharkalex

DSC_0229-a18 by stumbleon

DSC_0255-a25 by stumbleon

Black Chasm Cavern - more high pressure water formations by MathTeacherGuy

Black Chasm Cavern - soda straws and white stalactites by MathTeacherGuy

Black Chasm Cavern - white soda straws (3) by MathTeacherGuy

Black Chasm Cavern - flowstone with fossil-like shapes by MathTeacherGuy

Black Chasm Cavern - soda straws and white stalactites with red rocks by MathTeacherGuy

butte fire area, one year later. by supersusie

cavern by JiayiYoung

BlackChasm8-16-09_043 by Puckfiend

Helictites & Stalactites by caffeinatedjedi

CRW_7967-42 by eyeandpixel

BlackChasm8-16-09_054 by Puckfiend

CRW_7991-55 by eyeandpixel

LG8A3074 by Chris D 2006

cavern by JiayiYoung

White Pines Lake by Michael D. Montgomery

Nice Mountain View 1 by gajbatton

The "Sandy Gulch Dragon" by Alain Fils de Jean

Nice View 2 by gajbatton

North Fork Mokelumne River by Kuzidogblue

Rail Road Flat General Store by Alain Fils de Jean