Timber Knob: White Chert Rockhounding in Ozark County, Missouri

Updated June 2026

Timber Knob is a mapped rockhounding spot in Ozark County, Missouri. Reported finds include white chert. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Ozark County
State: Missouri
Coordinates: 36.56542, -92.46775

Geology at Timber Knob

This spot sits on ground mapped as limestone and siltstone that formed roughly 360 to 325 million years ago. Chert and agate nodules typically form inside carbonate rock like this and weather out as tough, waxy lumps in soils and creek beds.

Age: 360–325 Ma (Mississippian)
Rock types: limestone and siltstone
Elevation: 1,210 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 Timber Knob

Conditions here are workable year-round, with typical highs from 45°F in winter to 89°F in summer.

Climate normals: NOAA 1991-2020 monthlies, MTN HOME BAXTER CO RGNL AP station (13 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.

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

Found at Timber Knob

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

White Chert Encyclopedia →

Nearby rockhounding spots

Other rockhounding spots within driving distance of Timber Knob.

Across the state line from Timber Knob

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

Timber Knob FAQ

Where is Timber Knob?+

Timber Knob is in Ozark County, Missouri, at 36.56542, -92.46775.

What rocks and minerals can you find at Timber Knob?+

Timber Knob is reported to produce White Chert.

Is collecting allowed at Timber Knob?+

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 Timber Knob?+

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 Timber Knob?+

Timber Knob is workable year-round.

How do I get to Timber Knob?+

Open the directions link to navigate to 36.56542, -92.46775 in Google Maps. Some spots are remote, so check road conditions before driving out.

More rockhounding in Missouri

See all 94 Missouri spots →

Open Timber Knob on the map

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