Manhattan — Rockhounding in Gallatin County, Montana

Manhattan is a mapped rockhounding spot in Gallatin County, Montana. Reported finds include onyx. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Gallatin County
State: Montana
Nearest road: Horseshoe Cottonwood Road
Coordinates: 45.90928, -111.40563

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.

Found at Manhattan

Each chip links to all spots in the U.S. that produce that material.

Onyx

Nearby rockhounding spots

Other rockhounding spots within driving distance of Manhattan.

Manhattan FAQ

Where is Manhattan?+

Manhattan is in Gallatin County, Montana, at 45.90928, -111.40563. Nearest road: Horseshoe Cottonwood Road.

What rocks and minerals can you find at Manhattan?+

Manhattan is reported to produce Onyx.

Is collecting allowed at Manhattan?+

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 Manhattan?+

Open the directions link to navigate to 45.90928, -111.40563 in Google Maps. The nearest road is Horseshoe Cottonwood Road.

More rockhounding in Montana

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Open Manhattan on the map

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