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Obsidian Dome

Deadman Summit, June Lake Loop, Mammoth Lakes, CA
Review Highlights
Interesting Geological site

A relatively easy hike with views of the many types of rocks formed in a volcanic flow. Definitely... read more

Reviewed 1 week ago
Bob R

If you are interested in Geology this is a very interesting place. If you know a little about the... read more

Reviewed 2 weeks ago
Lomita, California
Read all 88 reviews
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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.
  • Excellent50%
  • Very good36%
  • Average14%
  • Poor0%
  • Terrible0%
Travellers talk about
“black glass” (8 reviews)
“dirt road” (11 reviews)
“wheel drive” (4 reviews)
Deadman Summit, June Lake Loop, Mammoth Lakes, CA
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Reviews (88)
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1 - 10 of 84 reviews

Reviewed 1 week ago

A relatively easy hike with views of the many types of rocks formed in a volcanic flow. Definitely recommended

Thank Bob R
Reviewed 2 weeks ago

If you are interested in Geology this is a very interesting place. If you know a little about the different types of rocks this is an interesting place. This is a pretty place to take some photos with some good views of the valley below....More

Thank 707clayg
Reviewed 4 weeks ago via mobile

Was a steep hike. The parking area is very small and one entrance and exit. There is a hike up a hill to get to the obsidian. Great views! Hot no shade, we did see some not melted snow! Toatally worth it!!!

Thank Maethoriel
Reviewed 7 September 2017

This destination is pretty cool. We decided to go as it was only about 7 miles from Oh Ridge Campground. Road back in the mountains is a little bumpy and best traveled with a four wheel drive. Decent road but parts of it would be...More

Thank Erin G
Reviewed 25 August 2017

The road to get to Obsidian Dome is unpaved for the most part. Best to go with 4WD. It's not a must do, but it is interesting.

Thank zoofamily
Reviewed 5 August 2017

I decided for our family to go visit this place for a change from seeing all the beautiful lakes. So all 6 of us got in our SUV, a black one ok, and I drove us there knowing my husband would probably make a faster...More

Thank Margarit P
Reviewed 25 July 2017 via mobile

We enjoyed an unplanned side trip to obsidian dome. About 2.7 mi from the highway, the road is unimproved. We made the trip easily in a small SUV. We saw obsidian and petrified wood. It was a fun and interesting trip

Thank 7suzi7
Reviewed 24 July 2017

Obsidian Dome is impressive if you love volcanoes and geology. However, the dirt road was too much for our little Jetta and we turned around before we got all the way to the area where you can climb. What we did see was interesting. Bring...More

1  Thank Rich M
Reviewed 20 July 2017

Found this place and thrilled my wife who really enjoys geology. Very interesting rock formations - lots of obsidian and other cool minerals. short hike off the road up to the top of the dome.

Thank Jim P
Reviewed 27 June 2017

Being a bit of a rock-hound I was keen to see Obsidian Dome as a quick stop on my San Francisco to Phoenix road trip. There are a lot of volcano sites along that road, but I think Obsidian Dome is the best one. Its...More

2  Thank craigallan-za
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Questions & Answers
Deborah Nagel D
21 September 2015|
AnswerShow all 4 answers
Response from sd_foodies | Reviewed this property |
Doubtful, it would probably close in November-december