About this location
Always seek permission where required, follow local laws, and practice Leave No Trace. Locations and details are community-submitted and may be inaccurate. Not sure what's legal here? Read our full guide to rockhounding laws by land type.
Found Here
Geologic setting
- Formation
- Hell Creek
- Geologic interval
- Maastrichtian
- Age
- 72.2–66 Ma
- Depositional environment
- terrestrial indet.
- Recorded occurrences
- 1
near Castle Buttle, 7 mi NW of Forsyth, MT
Fossils found here
Records and references
Data: Paleobiology Database collection 83299 (CC BY 4.0) — view the source record
Difficulty
Getting there
Location on Map
Coordinates: 46.37583, -106.80306
Nearby rockhounding locations
- Hysham — Moss AgateMT · 22.6 mi
- Lead Slug Hill 1 — FossilMT · 48 mi
- Custer County — Montana AgateMT · 43.2 mi
- North of Jordan — FossilMT · 67 mi
- USGS locality 9199 — FossilMT · 59.4 mi
- South of Hardin — FossilMT · 64.5 mi
Recommended Gear for Montana
Estwing E3-22P Rock Pick
The industry-standard 22oz geological hammer. One-piece forged steel with shock-reduction grip.
Clear Anti-Fog Safety Glasses (4 Pack)
Adjustable, anti-fog lenses for clear vision in any conditions. About $5 per pair.
Watertight Medical Kit
Compact, waterproof first aid kit with bandages, moleskin, and field essentials.
Northwest Treasure Hunter's Gem and Mineral Guide
Whether you're digging for the first time or are an experienced rockhound or "prospector," with a simple rock hammer and...
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Logbook Records
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