Marble Halls Cave

Marble Halls Cave
Discover the Marble Halls of Oregon
Deep within the Siskiyou Mountains are dark, twisting passages that await your discovery.  Eons of acidic water seeping into marble rock created and decorated the wondrous “Marble Halls of Oregon.” Join a tour, get a taste of what caving is all about, and explore a mountain from the inside and out!
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Mar 8, 2023 — U.S. government works are in the public domain (i.e., not protected by the U.S. Copyright Act). You can freely use them (in a copyright sense
https://www.nps.gov/orca/index.htm