Sula: Green Beryl Rockhounding in Ravalli County, Montana
Updated June 2026
Sula is a mapped rockhounding spot in Ravalli County, Montana. Reported finds include green beryl. Below: coordinates, access notes, nearby spots, and trip-planning links.
Map showing Sula in Ravalli County, Montana
Quick details
- Access
- Public area
- County
- Ravalli County
- State
- Montana
- Coordinates
- 45.86880, -113.98202
Geology at Sula
This spot sits on Missoula Group through Prichard Formation, metamorphosed, undivided, mapped as biotite-muscovite metaquartzite that formed roughly 1600 to 1000 million years ago. Metamorphic belts like this often host pegmatite dikes, the coarse-crystal bodies that typically carry beryl, tourmaline, and sheet mica.
- Mapped unit
- Missoula Group through Prichard Formation, metamorphosed, undivided
- Age
- 1600–1000 Ma (Mesoproterozoic)
- Rock types
- biotite-muscovite metaquartzite
- Elevation
- 4,830 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.
Best time to visit Sula
Best months: March to October. Typical highs run 81°F in midsummer and 33°F in midwinter, with winter lows near 12°F.
Climate normals: NOAA 1991-2020 monthlies, SULA 2 SE (SULA RS) station (4 mi away), adjusted for elevation.
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:
- 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 Sula
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 Sula.
- Crystal Mountain MineTop pick in MontanaRavalli County, Montana · 11 mi awayWhite Fluorite, Green Fluorite, Purple Fluorite
- Gem Mountain Sapphire MineGranite County, Montana · 32 mi awaySapphire
- Gem Mountain Sapphire MineGranite County, Montana · 32 mi away
- Rock CreekTop pick in MontanaGranite County, Montana · 39 mi awayQuartz, Sapphire
- Calvert Hill MineTop pick in MontanaBeaverhead County, Montana · 40 mi awayScheelite, Garnet, Aquamarine
- GeorgetownDeer Lodge County, Montana · 43 mi awayGold, Chrysocolla
- French CreekDeer Lodge County, Montana · 45 mi awayGold
- PhillipsburgGranite County, Montana · 46 mi awayChrysocolla, Rhodochrosite, Ore
Across the state line from Sula
Sula is close enough to the Montana border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.
- Salmon River (near Leesburg)Lemhi County, Idaho · 36 mi awayGold
- LeesburgLemhi County, Idaho · 45 mi awayGold, Petrified Wood
- Panther CreekLemhi County, Idaho · 55 mi awayOpal
- American RiverIdaho County, Idaho · 69 mi awayZircon
- Grouse CreekIdaho County, Idaho · 71 mi awayCorundum, Quartz
- Meyers CoverLemhi County, Idaho · 77 mi awayBanded Agate
