Kansas chalk badlands
From the fossil museum in Hays to chalk spires, arches and badlands rising from the prairie of western Kansas, ending at a canyon lake with a pueblo ruin.
- Distance
- 286 km (178 mi)
- Driving
- 3 h 10 min
- Suggested days
- 3
- Stops
- 8
- States
- KS
- Updated
- May 9, 2026
At a glance: 3-day road trip of about 286 km (178 mi) with 8 stops, from Hays to Scott City. About 3 h 10 min of driving in total.
Route description
Western Kansas was once the floor of a shallow inland sea, and its chalk is full of fossils. Start at the Sternberg Museum of Natural History in Hays, then take I-70 west to Quinter and follow gravel roads south to Castle Rock, a lone chalk spire above small badlands.
The dirt roads to Castle Rock become impassable after rain, so check the forecast and do not take a large RV. Return to I-70 and continue to Oakley, whose small fossil museum is worth a stop, then drive about 25 miles south on US-83 and county roads to Monument Rocks.
Monument Rocks is a group of chalk pillars and arches up to 70 feet high, standing on private land that is open to visitors. A few miles west, Little Jerusalem Badlands State Park protects the largest chalk formation in Kansas, seen from trails along its rim.
Finish at Lake Scott State Park north of Scott City, a spring-fed lake in a small canyon with the ruins of El Cuartelejo pueblo. Spring and fall are best; summer is hot with little shade, and thunderstorms can turn gravel roads to mud.
Stop-by-stop itinerary
In driving order. Distances are estimates between consecutive stops.
- 1Start
Hays
KS - 27 km
Sternberg Museum of Natural History
HistoryHays, KSA museum of the fossils found in the Kansas chalk, including the famous fish-within-a-fish. Good background before driving out to the formations.
- 394 km
Castle Rock
NatureQuinter, KSA chalk spire and badlands rising from the prairie south of I-70. The dirt roads are impassable after rain; do not climb the fragile rock.
- 480 km
Oakley
KS - 547 km
Monument Rocks
NatureOakley, KSChalk pillars and arches up to 70 feet high, the remains of an ancient seabed. They stand on private land open to visitors; respect it and stay off the rocks.
- 618 km
Little Jerusalem Badlands State Park
NatureOakley, KSKansas’s largest chalk formation, with rim trails looking down onto its spires. Access is limited to marked trails to protect the formation.
- 715 km
Lake Scott State Park
HistoryScott City, KSA spring-fed lake in a canyon, with the ruins of El Cuartelejo, the northernmost known pueblo. A shady campground and good swimming.
- 825 km
Scott City
KS
