Jellico: Agate & Chalcedony Rockhounding in Campbell County, Tennessee

Updated June 2026

Jellico is a mapped rockhounding spot in Campbell County, Tennessee. Reported finds include agate, chalcedony, jasper. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Campbell County
State: Tennessee
Nearest road: US 25W
Postcode: 37729
Coordinates: 36.55121, -84.06923

Geology at Jellico

This spot sits on Crab Orchard Mountains and Gizzard Groups, mapped as sandstone that formed roughly 325 to 300 million years ago. Tough silica like agate, jasper, and chert typically weathers out of beds like these and collects as float in drainages and on deflation surfaces.

Mapped unit: Crab Orchard Mountains and Gizzard Groups
Age: 325–300 Ma (Pennsylvanian)
Rock types: sandstone
Elevation: 1,120 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 Jellico

Conditions here are workable year-round, with typical highs from 45°F in winter to 86°F in summer.

Climate normals: NOAA 1991-2020 monthlies, NEWCOMB station (6 mi away).

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.

Sources: RockHoundR public spot dataset, app land overlays, and local agency review before each trip.

Found at Jellico

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 Jellico.

Across the state line from Jellico

Jellico is close enough to the Tennessee border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Jellico FAQ

Where is Jellico?+

Jellico is in Campbell County, Tennessee, at 36.55121, -84.06923. Nearest road: US 25W.

What rocks and minerals can you find at Jellico?+

Jellico is reported to produce Agate, Chalcedony, Jasper.

Is collecting allowed at Jellico?+

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.

What tools should I bring to Jellico?+

Most agate and jasper is surface float: bring a spray bottle, a pick or small shovel, and a sturdy bag. Wet stones show their banding and translucence.

When is the best time to visit Jellico?+

Jellico is workable year-round.

How do I get to Jellico?+

Open the directions link to navigate to 36.55121, -84.06923 in Google Maps. The nearest road is US 25W.

More rockhounding in Tennessee

See all 59 Tennessee spots →

Open Jellico on the map

Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.