Yellowstone River: Agate & Montana Agate Rockhounding in Park County, Montana
- Minerals reported
- 5
- Elevation
- 4,530 ft
- Best months
- March to November
Yellowstone River is a mapped rockhounding spot in Park County, Montana. Reported finds include agate, montana agate, moss agate, natrolite, silicified wood. Below: coordinates, access notes, nearby spots, and trip-planning links.
Plan your visit
Generally open to casual rockhounding
- County
- Park County
- State
- Montana
- Nearest road
- Myers Lane
- Postcode
- 59047
- Coordinates
- 45.62849, -110.56780
Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.
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.
Best time to visit Yellowstone River
Comfortable months (45 to 90°F highs)
Best months: March to November. Typical highs run 86°F in midsummer and 38°F in midwinter, with winter lows near 19°F.
Climate normals: NOAA 1991-2020 monthlies, LIVINGSTON AP station (8 mi away).
Geology at Yellowstone River
This spot sits on Alluvial deposits, mapped as sand and gravel that formed within roughly the last 12,000 years. Petrified wood typically travels as tough float, and worked gravels like these are exactly where weathered pieces tend to collect.
- Mapped unit
- Alluvial deposits
- Age
- < 1 Ma (Holocene)
- Rock types
- sand and gravel
- Elevation
- 4,530 ft
Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.
Today's weather
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The app shows live weather, recent rain, and a daily rockhounding score for Yellowstone River.
Get the appSources & 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:
- BLM Montana, Recreational mineral collecting
- Montana Bureau of Mines and Geology
- Gem Mountain Sapphire Mine (fee-dig operator)
- Community submissions reviewed against published agency rules
Found at Yellowstone River
Each name 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 Yellowstone River.
- LivingstonPark County, Montana · 4 mi awayAgatized Wood
- Mount BlackmoreGallatin County, Montana · 25 mi awayAgate, Chalcedony, Hyalite Opal
- SalesvilleGallatin County, Montana · 31 mi awayEmery, Corundum
- CarbellaPark County, Montana · 33 mi awayAgate, Jasper, Petrified Wood
- MinerPark County, Montana · 35 mi awayAgate, Chalcedony, Jasper
- Old Nye Picnic AreaStillwater County, Montana · 36 mi awaySilver
- Yellowstone River - Pelican Fishing AccessSweet Grass County, Montana · 39 mi awayMontana Moss Agate, Petrified Wood, Jasper
- JardinePark County, Montana · 40 mi awayArsenic, Gold, Tungsten
Yellowstone River FAQ
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More rockhounding in Montana
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Open Yellowstone River on the map
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