Denny Mt. — Rockhounding in King County, Washington

Denny Mt. is a mapped rockhounding spot in King County, Washington. Reported finds include calcite, quartz, amethyst, opal, pyrite. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: King County
State: Washington
Nearest road: Denny Creek Trail
Postcode: 98068
Coordinates: 47.43324, -121.44863

Land & collecting status

Generally open to casual rockhounding

Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.

Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.

Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

State guidance last verified: April 1, 2026

Washington Geological Survey (DNR)
Stonerose Interpretive Center — Visit & rules
BLM Spokane District
Community submissions reviewed against published agency rules

Found at Denny Mt.

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Nearby rockhounding spots

Other rockhounding spots within driving distance of Denny Mt..

Denny Mt. FAQ

Where is Denny Mt.?+

Denny Mt. is in King County, Washington, at 47.43324, -121.44863. Nearest road: Denny Creek Trail.

What rocks and minerals can you find at Denny Mt.?+

Denny Mt. is reported to produce Calcite, Quartz, Amethyst, Opal, Pyrite.

Is collecting allowed at Denny Mt.?+

Generally open to casual rockhounding. Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig. Always confirm current rules with the managing agency before a trip.

How do I get to Denny Mt.?+

Open the directions link to navigate to 47.43324, -121.44863 in Google Maps. The nearest road is Denny Creek Trail.

More rockhounding in Washington

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Open Denny Mt. on the map

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