Silver Hollow Bluff Mine: Zinc Rockhounding in Marion County, Arkansas
Updated June 2026
Silver Hollow Bluff Mine is a mapped rockhounding spot in Marion County, Arkansas. Reported finds include zinc. Below: coordinates, access notes, nearby spots, and trip-planning links.
Map showing Silver Hollow Bluff Mine in Marion County, Arkansas
Quick details
- Access
- Permission required
- County
- Marion County
- State
- Arkansas
- Nearest road
- Laffoon Cemetery Trail
- Coordinates
- 36.12125, -92.53175
Geology at Silver Hollow Bluff Mine
This spot sits on Cason Shale and Fernvale Limestone (Upper Ordovician) and Kimmswick Limestone, Plattin Limestone, and Joachim Dolomite (Middle Ordovician), mapped as limestone that formed roughly 470 to 445 million years ago. Carbonate rock like this dissolves and weathers readily, so fresh road cuts, quarries, and creek exposures are typically the most productive ground.
- Mapped unit
- Cason Shale and Fernvale Limestone (Upper Ordovician) and Kimmswick Limestone, Plattin Limestone, and Joachim Dolomite (Middle Ordovician)
- Age
- 470–445 Ma (Middle Ordovician to Late Ordovician)
- Rock types
- limestone
- Elevation
- 730 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 Silver Hollow Bluff Mine
Conditions here are workable year-round, with typical highs from 48°F in winter to 89°F in summer.
Climate normals: NOAA 1991-2020 monthlies, GILBERT station (14 mi away).
Land & collecting status
Permission required before collecting
Requires landowner or agency permission before any collecting. Do not enter without explicit authorization.
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:
- Ouachita National Forest — Mineral Collecting
- Crater of Diamonds State Park — Rules and finds
- Arkansas Geological Survey
- Community submissions reviewed against published agency rules
Found at Silver Hollow Bluff Mine
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 Silver Hollow Bluff Mine.
- Abandoned Mines (Yellville area)Marion County, Arkansas · 1 mi awaySmithsonite, Calcite, Quartz
- Yellville MinesTop pick in ArkansasMarion County, Arkansas · 2 mi awayGalena, Pyrite, Smithsonite
- Clabber CreekMarion County, Arkansas · 5 mi awayAgate
- Unnamed Location (Smoky Quartz & Calcite)Saline County, Arkansas · 95 mi awaySmoky Quartz, Calcite, Chert
- Unnamed Location (Serpentine)Saline County, Arkansas · 101 mi awaySerpentine
- Coleman's Crystal MineGarland County, Arkansas · 105 mi awayQuartz
- Ron Coleman MiningGarland County, Arkansas · 106 mi awayQuartz, Amethyst, Smoky Quartz
- Bauxite QuarriesTop pick in ArkansasSaline County, Arkansas · 109 mi awayBauxite, Heliotrope Bauxite
Across the state line from Silver Hollow Bluff Mine
Silver Hollow Bluff Mine is close enough to the Arkansas border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.
Silver Hollow Bluff Mine FAQ
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More rockhounding in Arkansas
See all 32 Arkansas spots →Open Silver Hollow Bluff Mine on the map
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