Palisades-Kepler State Park Trail winds through a river corridor park along the Cedar River in Linn County, located at 700 Kepler Dr in Mount Vernon, Iowa, approximately 15 minutes from both Cedar Rapids and Iowa City via US-30. The park protects an 840-acre stretch of Cedar River bottomland and limestone bluff terrain, featuring one of eastern Iowa's most scenic river gorges. The trail network covers approximately 8 miles across several interconnecting loops, making Palisades-Kepler one of the more extensive day-hiking destinations in the Cedar Rapids metro area.
The trailhead and primary parking area are at the park entrance on Kepler Dr, where free parking and restrooms are available. No permit or entry fee is required. Trails begin on packed dirt and transition to limestone paths as they climb the bluffs above the Cedar River. Elevation change is modest at approximately 150 feet, but the bluff-top sections involve exposed limestone outcroppings and tree-root terrain that demands sure footing.
The Palisades are the park's signature feature: vertical limestone bluffs rising 30 to 40 feet directly above the Cedar River, formed over millions of years of river erosion cutting through Devonian limestone. The bluff-top trail hugs the cliff edge at several points, offering views upstream and downstream. The route most recommended for first-time visitors follows the River Trail upstream from the main parking area to the Palisades, then loops back via the upland forest trail — a circuit of roughly 3 to 4 miles. Water is available at the main parking area; no on-trail water sources are present on the bluff sections. The Cedar River can flood the lower trail sections after sustained rainfall.
Wildlife is abundant along the river corridor. Bald eagles are regularly observed in winter and early spring, and great blue herons nest along the Cedar River near the park. Wildflowers carpet the bluff-top margins in April and May. The park includes a campground and picnic areas for those extending their visit.
Trail facts
- Trail area
- Mount Vernon
- Best season
- April-November
What to bring
- Hiking shoes
- Water
- Trail map
Location
700 Kepler Dr, Mount Vernon, IA 52314
41.9286, -91.4427 View on map
Highlights
- Limestone palisades rising 30–40 ft above the Cedar River — the most dramatic bluff scenery in central Iowa
- 8 miles of interconnecting loops through bluff, forest, and river corridor terrain
- Bald eagle sightings along the Cedar River in winter and early spring
- Wildflower blooms on bluff-top margins in April and May
- Close proximity to Cedar Rapids and Iowa City — 15 minutes from either city
Tips for visiting
- Check Iowa DNR trail conditions before visiting — lower river trail sections flood after heavy rain
- The bluff-top edge sections involve exposed limestone; watch footing carefully near the cliff edge
- Binoculars are worthwhile for bald eagle observation from December through March
- Restrooms are at the main parking area only — no trail facilities
- Visit on weekdays to avoid weekend crowds from Cedar Rapids and Iowa City
- Combine with a Cedar River canoe or kayak rental for a full day outing
When to visit
April through November offers the best trail conditions. April and May are particularly scenic with spring wildflowers on the bluff margins; December through March are the best months for bald eagle observation along the Cedar River.
Accessibility
The lower River Trail sections closest to the main parking area are relatively flat and accessible for strollers on packed dirt, though conditions vary after rain. The bluff-top Palisades sections involve uneven limestone and are not wheelchair accessible. Restrooms at the main parking area are accessible.
Frequently asked questions
Is there a fee to enter Palisades-Kepler State Park?
No, there is no entry fee for the park. Parking and trail access are free.
What are the Palisades exactly?
The Palisades are a series of vertical limestone bluffs rising 30 to 40 feet directly above the Cedar River. They were formed by millions of years of river erosion cutting through the underlying Devonian limestone bedrock.
Can the lower River Trail flood?
Yes. The lower River Trail section runs close to the Cedar River and can flood after prolonged or heavy rainfall. Check Iowa DNR's trail conditions page before visiting, especially in spring.
Are there camping facilities in the park?
Yes, Palisades-Kepler State Park has designated camping areas available by reservation through Iowa DNR, with both electric and non-electric options.
Is the park suitable for families with young children?
The lower flat sections of the trail near the river are suitable for older children. The bluff-top sections with exposed limestone edges are not recommended for young children without close adult supervision.