Updated July 2026
50 mapped spots for rock hunting and rock collecting across 38 counties. Kansas rockhounding is river gravel, road cuts, and the far west: agate, jasper, and petrified wood on the Kansas and Arkansas river bars, moss agate and agatized wood from the Ogallala beds and the Cimarron National Grassland, selenite and satin spar in the Red Hills gypsum, and Flint Hills chert. The Tri-State district at Galena adds galena, sphalerite, and calcite on historic ground.
The best rockhounding in Kansas is at Topeka in Shawnee County (lake superior agate), Cimarron National Grassland in Morton County (agate, jasper), and Arkansas River at Great Bend in Barton County (agate, jasper). In total, 50 mapped collecting spots across 38 counties produce agate, petrified wood, and jasper, each listed below with its land access.
Best spotCimarron National GrasslandMorton County, KansasPublic access · Agate, Jasper, Chalcedony +2
Best spotArkansas River at Great BendBarton County, KansasPublic access · Agate, Jasper, Chalcedony +1
Best spotKansas River at LawrenceDouglas County, KansasPublic access · Lake Superior Agate, Agate, Chert +1
Best spotArkansas River at WichitaSedgwick County, KansasPublic access · Agate, Jasper, Petrified Wood
Best spotTopekaShawnee County, KansasPublic access · Lake Superior Agate
GalenaCherokee County, KansasPublic access · Galena, Sphalerite, Barite +5Medicine Lodge RiverBarber County, KansasPublic access · Agate, Jasper, Agatized Wood +3ConcordiaCloud County, KansasPublic access · Agate, Moss Agate, Banded Agate +2West MineralCherokee County, KansasPublic access · Pyrite, Calcite, Dolomite +2
Big Blue RiverMarshall County, KansasPermission required · Agate, Chalcedony, Chert +1McLouthJefferson County, KansasPublic access · Lake Superior Agate, Chalcedony, Jasper +1Verdigris RiverWilson County, KansasPublic access · Agate, Jasper, Chalcedony +1AshlandClark County, KansasPublic access · Moss Agate, Opal, JasperBaxter SpringsCherokee County, KansasPublic access · Galena, Sphalerite, PyriteChikaskia RiverKingman County, KansasPublic access · Agate, Jasper, Petrified WoodAetnaBarber County, KansasPublic access · Agate, Agatized WoodKanopolisEllsworth County, KansasPublic access · Halite, Volcanic AshRepublican RiverGeary County, KansasPermission required · Agate, JasperSharon SpringsWallace County, KansasPublic access · Agate, Petrified WoodSmoky Hill River (amber)Ellsworth County, KansasPermission required · Amber, Barite RoseSmoky Hill River (moss agate)Logan County, KansasPublic access · Moss Agate, ChalkStrong CityChase County, KansasPermission required · Chalcopyrite, GeodeSun CityBarber County, KansasPublic access · Gypsum, CalciteYates CenterWoodson County, KansasPublic access · Amethyst, QuartzAdaOttawa County, KansasPublic access · Petrified WoodBonner SpringsWyandotte County, KansasPublic access · GeodeFlorenceMarion County, KansasPublic access · GeodeFreemountMcPherson County, KansasPublic access · Septarian NoduleGarnettAnderson County, KansasPublic access · FossilGeary CountyGeary County, KansasPublic access · Agatized WoodJunction CityGeary County, KansasPublic access · GeodeKimberly RanchKiowa County, KansasPublic access · MeteoriteMedicine LodgeBarber County, KansasPublic access · Petrified WoodMushroom RocksEllsworth County, KansasPermission required · Pyrite ConcretionNortonNorton County, KansasPublic access · Quartz ConcretionOsborneOsborne County, KansasPublic access · Septarian NoduleOttawaFranklin County, KansasPublic access · Fossil PlantPony CreekBrown County, KansasPublic access · CelestiteRock City ParkOttawa County, KansasPublic access · ConcretionRock TownCowley County, KansasPublic access · GeodeSmoky Hill River (chalk)Ellis County, KansasPublic access · ChalkSmoky Hills RiverDickinson County, KansasPublic access · Agatized WoodSouth Fork Solomon RiverSheridan County, KansasPublic access · Moss AgateStockdaleRiley County, KansasPublic access · GarnetTrego CountyTrego County, KansasPublic access · GeodeWallaceWallace County, KansasPublic access · Moss OpalWallace CountyWallace County, KansasPublic access · GeodeWalnut RiverButler County, KansasPublic access · GeodeWashingtonWashington County, KansasPublic access · CelestiteWilmoreComanche County, KansasPublic access · Volcanic AshRepresentative spot and material photos from locations in this state, shown where verified public image records are available.
Counts reflect how many spots in this list mention each mineral.
Notable areas: Kansas River agates, Cimarron National Grassland moss agate and petrified wood, Red Hills selenite, Flint Hills chert, and Galena district galena are the Kansas targets collectors travel for.
Kansas rocks get younger westward. The southeast corner is Pennsylvanian and Mississippian limestone and shale, and the Cherokee County corner sits on the Tri-State lead-zinc district with galena, sphalerite, calcite, and chert dumps around Galena. The Flint Hills are Permian limestone banded with chert that weathers to nodules and float. Central Kansas carries the Cretaceous Dakota sandstone with iron concretions, agatized and petrified wood, and chalcedony in Ellsworth and Ottawa counties, and the Permian red beds of Barber and Comanche counties expose gypsum, selenite, and satin spar in the Red Hills. The Niobrara chalk of Gove, Logan, and Wallace counties is famous for marine fossils but its landmarks are private and protected. The Ogallala Formation across the High Plains cements gravel that carries moss agate, chalcedony, and opalized and agatized wood, best reached on the Cimarron National Grassland. Glacial drift in the northeast corner and the Kansas River gravels add Lake Superior agate and quartzite erratics.
Agate, jasper, petrified wood, and quartz on gravel bars at Lawrence, Topeka, Wichita, and Great Bend. Both rivers are public navigable waters in Kansas, so the bed and bars below the high-water line are open.
Moss agate, chalcedony, agatized wood, and opalized wood on the grassland, where hand collecting is allowed, and in Ogallala outcrops on private ranches with permission.
Selenite and satin spar in the gypsum breaks near Medicine Lodge, iron concretions and agatized wood in the Dakota sandstone. Almost all private; Rock City and Mushroom Rock are view-only.
Chert nodules in Flint Hills road cuts and pastures, galena, sphalerite, and calcite on the Galena mine dumps. The dumps are private and largely reclaimed; the Galena Mining and Historical Museum is the introduction.
Late summer and fall low water for the rivers, September through November, and spring after rains for pastures and road cuts, when fresh float shows. The High Plains and Red Hills are hot from June to August and best in spring and fall. Winter is workable on dry days.
A garden rake and screen for gravel bars, knee boots, a spray bottle, a rock hammer and safety glasses for road cuts, a hand lens for moss agate, gloves, sun protection, and far more water than you think on the grassland. Cell coverage is thin in the west.
Galena's lead was discovered in 1877 and the Tri-State district became one of the world's great zinc producers. Kansas named the Greenhorn limestone its state rock, galena its state mineral, and jelinite amber its state gem in 2018, and Tylosaurus and Pteranodon its state fossils.
Day-trip range. Each section lists the closest mapped rockhounding spots within about 150 miles of the city. Most are inside a 2 to 3 hour drive.
6 closest spots to Wichita, KS.
6 closest spots to Topeka, KS.
6 closest spots to Salina, KS.
Geology rarely respects state borders. These states share mapped rockhounding country with Kansas, useful when Kansas is the start, not the whole trip. Each card links to the closest county across the line.
County pages are linked once we have at least 3 mapped spots for a focused guide with coordinates, mineral notes, and nearby spots.
Hand-picked standouts from the Kansas list, chosen for unusual mineralogy, documented public access, or both. Each card links to coordinates, access notes, and what to look for.
Top pickShawnee County
The Kansas River gravels in and near Topeka hold Lake Superior agate carried south by Ice Age glaciers, a distribution the Kansas Geological Survey describes as highly localized to this part of the state.
Lake Superior Agate
Top pickMorton County
Cimarron National Grassland covers about 108,000 acres in the far southwest corner of Kansas and is the largest tract of public land in the state, managed by the U.S. Forest Service.
Agate, Jasper, Chalcedony, Chert
Top pickBarton County
At Great Bend the Arkansas River swings east and begins its 192-mile National Water Trail run to the Oklahoma line, a designation that gives the public access to sandbars and gravel islands along the route.
Agate, Jasper, Chalcedony, Petrified Wood
Top pickDouglas County
The Kansas River at Lawrence carries the same glacial gravels found upstream at Topeka, including Lake Superior agate along with chert, quartzite, and petrified wood shed from Ice Age drift.
Lake Superior Agate, Agate, Chert, Petrified Wood
Top pickSedgwick County
The Arkansas River runs through the center of Wichita, where its gravel bars yield agate, jasper, and petrified wood carried from the west.
Agate, Jasper, Petrified Wood
5 clubs in Kansas. Clubs run field trips, shows and workshops, and many trips go to private claims you can't reach alone.
Open the RockHoundR app to see Kansas on a real map with public land overlays, weather, geology, and your saved finds.
