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Address: Deadman Summit, June Lake Loop, Mammoth Lakes, CA
Description: Location is in Mono County near June lakes, this natural dome was created...
Location is in Mono County near June lakes, this natural dome was created out of lava which solidified to black glass, hence the name, obsidian.
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Worth the Stop

I have been going to Mammoth for years and always saw the sign for Obsidian Dome but never stopped. It is accessible by a dirt road and is worth the 5-10 minutes it will take you... read more

5 of 5 starsReviewed June 16, 2015
yeguerrero
,
Bonita, California
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43 Reviews from our TripAdvisor Community

Date | Rating
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English first
Bonita, California
Level Contributor
78 reviews
19 attraction reviews
common_n_attraction_reviews_1bd8 36 helpful votes
5 of 5 stars Reviewed June 16, 2015

I have been going to Mammoth for years and always saw the sign for Obsidian Dome but never stopped. It is accessible by a dirt road and is worth the 5-10 minutes it will take you to get there. The wall of Obsidian is impressive!. I had never seen anything like it. When I went there was no one else... More 

Was this review helpful? Yes
San Angelo, Texas
Level Contributor
256 reviews
74 attraction reviews
common_n_attraction_reviews_1bd8 171 helpful votes
3 of 5 stars Reviewed June 14, 2015

My husband and I made this long drive over a pretty bumpy road. The dome is nice but not sure I would make the drive again.

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Diamond Bar, California
Level Contributor
185 reviews
74 attraction reviews
common_n_attraction_reviews_1bd8 105 helpful votes
4 of 5 stars Reviewed April 15, 2015

Great mid-day, mid-level hike of less than three miles round-trip up and down the dome. Wear sensible shoes with good ankle support; if you explore off the trail, the stones are unstable under your feet; slipping and sliding is part of the experience.

Was this review helpful? Yes 3
Camarillo, California
Level Contributor
4 reviews
3 attraction reviews
common_n_attraction_reviews_1bd8 3 helpful votes
5 of 5 stars Reviewed January 12, 2015

Do you enjoy rock hopping, seeing unusual rock formations and quiet? This is a magical and odd place. Not many trees to divert the intensity of the rocks. Rocks everywhere and little caves; such a contrast to the magnificent blue sky and verdant green trees across most vistas. Be careful, sharp rocks…and please respect nature!

Was this review helpful? Yes 2
Livermore,CA
Level Contributor
51 reviews
11 attraction reviews
common_n_attraction_reviews_1bd8 41 helpful votes
4 of 5 stars Reviewed October 20, 2014

This is an unusual volcanic feature consisting of huge chunks of obsidian sometimes mixed with a pinkish colored volcanic rock. A must see for the naturally curious, those curious about nature or anyone interested in geological process. Fine smaller specimens can easily be found. You drive in on a dirt road through the forest. We had no trouble navigating it... More 

Was this review helpful? Yes 3
Imperail Beach
Level Contributor
60 reviews
25 attraction reviews
common_n_attraction_reviews_1bd8 14 helpful votes
5 of 5 stars Reviewed August 29, 2014

A great place to check out and read some history on it. This young Obsidian Dome is on the the best places to see a hill of solid obsidian. The lavas were extruded as highly viscous flows much like toothpaste might be squeezed from a tube. Climb to the top for trails and interesting pieces.

Was this review helpful? Yes 1
Fremont, California
Level Contributor
2,687 reviews
1,676 attraction reviews
common_n_attraction_reviews_1bd8 1,607 helpful votes
5 of 5 stars Reviewed July 23, 2014

Obsidian Dome is a mile-long 300 foot high lava dome that is part of the Mono–Inyo Craters volcanic chain located in the Inyo National Forest. To see it, one needs to drive on a non paved road. Some of the rocks look just like rocks - average - nice but nothing special; but when you see the glistening black obsidian... More 

Was this review helpful? Yes 1
Thoiry, France
Level Contributor
73 reviews
52 attraction reviews
common_n_attraction_reviews_1bd8 111 helpful votes
4 of 5 stars Reviewed July 20, 2014

Certainly an impressive sight to see the volcanic rocks all piled up in a dome-like feature sitting in the middle of the pine forest. However, the quality of the obsidian was not what we thought, as we were hoping to find the very glassy black obsidian used to make arrow points. The bulk of the obsidian was not very glassy... More 

Was this review helpful? Yes 4
Yountville, California
Level Contributor
118 reviews
32 attraction reviews
common_n_attraction_reviews_1bd8 50 helpful votes
4 of 5 stars Reviewed March 10, 2014

Right off Highway 395. Rough road, dusty. potentially dangerous - stay off of that broken debris. A challenging adventure, best seen from the Hiway.

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San Jose, California
Level Contributor
115 reviews
35 attraction reviews
common_n_attraction_reviews_1bd8 31 helpful votes
4 of 5 stars Reviewed December 4, 2013

While on a fishing trip in the east Sierra, I stopped by the site. This is a stop for geologists or students of the formation of this geographic area. Quite a spectacular mound of black glass. Little to no markings around the area. No amenities of any kind. Drive in on unpaved roads to the foot of the dome. The... More 

Was this review helpful? Yes 2

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Additional Information about Obsidian Dome

Address: Address: Deadman Summit, June Lake Loop, Mammoth Lakes, CA
Location: United States  >  California (CA)  >  Mammoth Lakes

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