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Routes
Road cycling routes
United States
Iowa
Polk County
Polk City

Big Creek State Park – Neal Smith Trail loop from Big Creek State Park

Routes
Road cycling routes
United States
Iowa
Polk County
Polk City

Big Creek State Park – Neal Smith Trail loop from Big Creek State Park

Moderate

2.8

(28)

62

riders

Big Creek State Park – Neal Smith Trail loop from Big Creek State Park

03:32

44.0km

310m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is right next to a parking lot.

Last updated: May 25, 2026

Waypoints

A

Start point

Parking

Get Directions

1

153 m

Big Creek State Park

Highlight • Lake

Big Creek State Park is a very popular park for cycling and hiking. Big Creek Lake, at the center of the park, is the largest lake in the Iowa State …

Tip by

2

9.17 km

Neal Smith Trail

Highlight (Segment) • Trail

The 26-mile Neal Smith Trail rolls along the banks of the Des Moines River through the Ding Darling Greenway conservation area and weaves its way through a variety of landscapes, …

Tip by

3

12.3 km

Great views of the lake from the Neal Smith Trail as it passes over the Big Creek Barrier Dam. The dam was constructed to protect Polk City from flooding from Saylorville Lake.

Tip by

4

22.3 km

Saylorville Dam

Highlight • Monument

Pause your ride at Saylorville Dam for scenic views. This dam on the Des Moines River in Iowa is only 11 miles upstream from Des Moines, offering a great place to hop off your bike and take a break!

Tip by

5

35.4 km

Neal Smith Trail

Highlight (Segment) • Trail

The 26-mile Neal Smith Trail rolls along the banks of the Des Moines River through the Ding Darling Greenway conservation area and weaves its way through a variety of landscapes, …

Tip by

B

44.0 km

End point

Parking

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Way Types & Surfaces

Way Types

36.8 km

5.38 km

1.80 km

< 100 m

< 100 m

Surfaces

36.8 km

5.14 km

2.09 km

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

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Weather

Powered by Foreca

Today

Thursday 25 June

27°C

15°C

0 %

Additional weather tips

Max wind speed: 5.0 km/h

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Description

The Big Creek State Park – Neal Smith Trail loop is a fantastic road cycling route if you're looking for a dynamic ride with varied scenery and a good workout. This moderate 27.3-mile (44.0 km) loop, with 1009 feet (307 metres) of elevation gain, takes roughly 3 hours and 32 minutes to complete, making it a rewarding challenge for those ready for rolling hills and diverse terrain.

What to expect on Big Creek State Park – Neal Smith Trail loop from Big Creek State Park

Expect a ride that keeps things interesting, winding through dense forests, along the Des Moines River, and past wildflower meadows. You'll get panoramic views of Saylorville Lake, and keep an eye out for wildlife like deer and beaver. The trail isn't flat; it features rolling hills, especially near Saylorville Lake, which can be quite hilly. While some sections are smooth, be prepared for inconsistent pavement with cracks and tree root ridges, making it a good test for your road bike skills and fitness.

Planning your visit

The Neal Smith Trail is part of the Central Iowa Trail Network and offers numerous access points, restrooms, and picnic areas along its length. Parking is generally available at Big Creek State Park. While the trail is accessible year-round, consider visiting in spring or fall for the most comfortable temperatures and vibrant scenery, especially around the butterfly garden near the Saylorville Lake Visitor Center.

Trail details

  • Distance: 27.3 miles (44.0 km)
  • Elevation gain: 1009 feet (307 metres)
  • Difficulty: moderate
  • Estimated time: 3 hours and 32 minutes

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