Strong City: Geode Digging in Chase County, Kansas

Quick details

Access

Permission required

County

Chase County

State

Kansas

Nearest road

Bottomland Nature Trail

Postcode

66869

Coordinates

38.40455, -96.55052

Geology at Strong City

This spot sits on Alluvium, mapped as sand, silt, and clay that formed within roughly the last 3 million years. Geodes weather out of their host rock and collect in gravels like these, where their round shape and light heft help them stand out.

Mapped unit

Alluvium

Age

3 Ma to present (Pleistocene to Holocene)

Rock types

sand, silt, and clay

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 Strong City

Best months: February to June. Typical highs run 92°F in midsummer and 43°F in midwinter, with winter lows near 19°F.

Climate normals: NOAA 1991-2020 monthlies, TALLGRASS PRAIRIE NP station (2 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.

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

Found at Strong City

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

• ChalcopyriteEncyclopedia →
• GeodeEncyclopedia →