OpalWA
Grand Coulee
Grand Coulee is a documented mineral occurrence near WA. Reported specimens include Opalized wood. Verify land access and collecting rules before visiting.
View detailsTurquoise & Opal rockhounding sites in Washington
Turquoise, opal, variscite, and other prized lapidary materials from the American Southwest and beyond.
8 turquoise & opal destinations in Washington.
Rockhounding sites in Washington — turquoise & opal: 8 spots in our directory. Sort live from your phone with near me, or browse all U.S. turquoise & opal rockhounding sites and the Washington state page.
Guides & hubs: Washington rockhounding guide · Rockhounding near Seattle — Walker Valley day trips · Agates in the USA — Ellensburg blue beds · Geodes near me — Walker Valley & PNW
Turquoise & Opal collecting in Washington
Turquoise, opal, variscite, and other prized lapidary materials from the American Southwest and beyond.
We currently document 8 turquoise & opal collecting sites in Washington. Each listing includes original descriptions, visitor notes, and last-updated dates when available.
What to know before you collect
Turquoise & Opal destinations in Washington vary widely in access, season, and legality. Some are official recreation areas; others are informal gravel bars. Read the access and safety sections on each listing — never assume collecting is allowed without checking current signage.
For trip planning beyond this filter, browse the full Washington state page, our guides, or use near me to sort by distance from your location.
OpalWA
Horse Heaven Hills
Horse Heaven Hills is a documented mineral occurrence near WA. Reported specimens include Opalized wood. Verify land access and collecting rules before visiting.
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Mattawa
Mattawa is a documented mineral occurrence near WA. Reported specimens include Opalized wood. Verify land access and collecting rules before visiting.
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Mondovi
Mondovi is a documented mineral occurrence near WA. Reported specimens include Opal, Fire Opal. Verify land access and collecting rules before visiting.
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Moses Coulee
Moses Coulee is a documented mineral occurrence near WA. Reported specimens include Opalized wood. Verify land access and collecting rules before visiting.
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Petrified Forest State Park
Petrified Forest State Park is a documented mineral occurrence near WA. Reported specimens include Opalized wood, Petrified wood. Verify land access and collecting rules before visiting.
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Pullman
Pullman is a documented mineral occurrence near WA. Reported specimens include Fire Opal. Verify land access and collecting rules before visiting.
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Waterville
Waterville is a documented mineral occurrence near WA. Reported specimens include Common Opal. Verify land access and collecting rules before visiting.
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