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Routes
Road cycling routes
United States
Missouri
St. Charles County
Weldon Spring

Katy Trail and St. Charles Greenways Loop

Moderate

3.2

(13)

43

riders

Katy Trail and St. Charles Greenways Loop

03:51

84.0km

390m

Road cycling

Embark on the Katy Trail and St. Charles Greenways Loop, a moderate road cycling adventure spanning 52.2 miles (84.0 km) with an elevation gain of 1266 feet (386 metres). You can expect to complete this route in about 3 hours and 50 minutes. The trail offers a varied landscape, blending the rustic charm of the Katy Trail with the more developed feel of paved greenways. As you cycle, you will encounter picturesque views of the Missouri River and impressive limestone bluffs, especially along the Katy Trail sections. Keep an eye out for the Veterans Memorial Bridge over the Missouri River, a significant landmark on your journey.

This loop is generally accessible, connecting various communities and providing safe passage over busy highways. While the route is well-established, remember that services like bike shops or cafes might not be available at every trailhead along the Katy Trail. It is a good idea to plan your stops for refreshments and any bike maintenance needs in advance. Consider starting your ride early in the day to make the most of the daylight and avoid peak traffic times in more urban sections.

The Katy Trail and St. Charles Greenways Loop offers a unique blend of natural beauty and local history. The route takes you through historic downtown St. Charles, allowing you to experience a mix of natural scenery and local amenities. This trail is notable for its combination of the historic Katy Trail State Park, one of the country's longest rail-trails, with modern greenways, providing a diverse and engaging cycling experience for you to explore.

Last updated: April 23, 2026

Tips

The surface along some of this route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 19.2 km for 2.63 km

After 23.6 km for 8.30 km

Waypoints

A

Start point

Parking

Get Directions

1

13.2 km

Greens Bottom Road

Highlight (Segment) • Cycleway

Greens Bottom Road is a great alternative to the Katy Trail as it is lightly trafficked and has a 45 miles per hour speed limit. It's a short stretch of pavement where you can easily access or depart from the Katy Trail.

Tip by

2

22.7 km

Separate bike path on the Veterans Memorial Bridge. Nice views of the Missouri River.

Tip by

3

25.0 km

Katy Trail West of St. Charles

Highlight (Segment) • Trail

This section of the Katy Trail starts right after St. Charles and goes all the way to the 364 bridge. The gravel is compact.

Tip by

4

36.6 km

Boschert Greenway

Highlight (Segment) • Cycleway

The well-paved multi-use path spans 5 miles, linking New Town, Fox Hill Park, Little Hills Expressway, and Highway 370. It offers mostly flat terrain and enjoys plenty of sunlight.

Tip by

5

43.7 km

Highway B

Highlight (Segment) • Cycleway

Highway B is a nice, flat road with farms on either side. It serves as a floodplain when river levels rise. On the opposite side of the farms lies the Missouri River.

Tip by

6

75.1 km

Old Town Cottleville

Highlight • Settlement

Cottleville is a lovely small city known for its quaint downtown area. With its touch of old-fashioned charm, it stands out as a unique stop along the country roads.

Tip by

B

84.0 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

55.8 km

11.6 km

10.7 km

3.87 km

2.08 km

Surfaces

63.1 km

10.7 km

10.2 km

118 m

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Elevation

Elevation

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

Highest point (200 m)

Lowest point (130 m)

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Weather

Powered by Foreca

Today

Friday 8 May

22°C

9°C

73 %

Additional weather tips

Max wind speed: 14.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What kind of bike and tires are best suited for the Katy Trail and St. Charles Greenways Loop?

For this loop, a racebike is suitable, but consider your tires. The Katy Trail sections are primarily crushed limestone, which can be smooth but also dusty or gravely. For comfort and performance on this surface, tires 25mm or wider are recommended. The St. Charles Greenways are typically paved asphalt, where narrower road bike tires perform well.

What is the terrain and surface like on this cycling loop?

The loop offers varied terrain. The Katy Trail portions feature a crushed limestone surface, known for being exceptionally flat. In contrast, the St. Charles Greenways, such as the Boschert Greenway, are mostly paved with asphalt. However, some greenway sections, like parts of the Centennial Greenway, include moderate climbs and descents, adding elevation change to the ride.

Is this loop suitable for beginner road cyclists?

The loop is generally considered easy to moderate. The Katy Trail sections are very flat and accessible. However, the inclusion of St. Charles Greenways can introduce moderate hills, particularly on the Centennial Greenway. While beginners can enjoy much of the route, some sections might require a bit more fitness.

What are some notable sights or landmarks along the route?

You'll encounter a mix of natural beauty and historical points. Along the Katy Trail, expect views of the Missouri River and limestone bluffs. The route also passes by the Veterans Memorial Bridge over the Missouri River and through Old Town Cottleville. The greenways connect to historic downtown St. Charles and local parks.

What is the best time of year to cycle this loop?

Spring and fall generally offer the most pleasant cycling conditions with mild temperatures and beautiful scenery. Summer can be hot and humid, while winter cycling is possible but may involve colder temperatures and potential trail closures due to snow or ice. Check local weather and trail conditions before you go.

Are dogs allowed on the Katy Trail State Park and St. Charles Greenways?

Yes, dogs are generally allowed on both the Katy Trail State Park and the St. Charles Greenways. They must be kept on a leash and under control at all times. Please remember to clean up after your pet to help keep the trails enjoyable for everyone.

Are there any permits or entrance fees required to cycle this route?

No, there are no permits or entrance fees required to access or cycle on the Katy Trail State Park or the St. Charles Greenways. Both are publicly accessible for recreational use.

Where can I park to access the Katy Trail and St. Charles Greenways Loop?

There are numerous access points with parking along both the Katy Trail and the St. Charles Greenways. For this specific loop, popular starting points often include trailheads in St. Charles or nearby communities that connect directly to the greenway system or the Katy Trail. Check local maps for specific trailhead parking locations.

Does this loop connect with other trails?

Yes, this route utilizes and connects several official trails. You'll spend significant time on the Katy Trail and Katy Trail State Park. It also incorporates sections of the Mississippi River Trail (Missouri), ADT - Missouri - L - Seg 2, Boschert Greenway, Busch Greenway, and Centennial Greenway, among others.

What services are available along the Katy Trail sections of the loop?

Towns along the Katy Trail are generally cyclist-friendly. You can find bike shops, campgrounds, cafes, breweries, wineries, and lodging in many of the communities. However, services might not be available at every trailhead, so it's wise to plan your stops, especially for water and food.

Is the Katy Trail always crushed limestone, or are there paved sections?

The Katy Trail itself is predominantly crushed limestone for its entire length. While it can be very well-packed and smooth in high-traffic areas, it is not paved with asphalt. The paved sections you encounter on this loop will be part of the St. Charles Greenways or connecting roads, not the Katy Trail itself.

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