You are entering the Obsidian Area next to the Three Sisters. Obsidian is a black glassy rock that is formed when lava is cooling down very quickly. To enter the area, you have to obtain a permit via recreation.gov. If you are a PCT hiker, your permit will allow you to pass directly through this area without camping.

Teri S

July 24, 2024

Photos do not capture the sparkling beauty of the Obsidian flows through this area. This culturally important rock was used to make arrowheads and for trade by the Native Americans living in the area; it is glassy in appearance and can be sharp to the touch. An excellent destination for those who love geology and history.

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Elevation 2,020 m

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Wednesday 29 October

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Max wind speed: 15.0 km/h

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Location: Lane County, Oregon, United States

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