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Road cycling routes
United States
Missouri
St. Charles County
St. Charles

Katy Trail: St. Charles to Machens

Moderate

3.4

(18)

83

riders

Katy Trail: St. Charles to Machens

02:44

39.9km

50m

Road cycling

If you're looking for a wonderfully flat and scenic road cycling experience, the Katy Trail: St. Charles to Machens is a fantastic option. This route follows the Missouri River, treating you to views of lush farmland, open fields, and shaded forest segments, with impressive bluffs appearing near Klondike Park. The packed crushed limestone surface makes for a smooth ride, and the minimal 149 feet (45 metres) of elevation gain over 24.8 miles (39.9 km) ensures an easy, relaxed journey.

Planning your ride is straightforward, as this moderate route is suitable for all skill levels and takes about 2 hours and 44 minutes. You can start your adventure in Historic Downtown St. Charles, which offers a great historical backdrop. While the trail is generally very accessible, it's wise to check for local conditions, especially near Machens, as this low-lying area can be prone to flooding.

This segment is part of the historic Katy Trail State Park, the longest developed rail-trail in the United States, and is even designated as part of the Lewis and Clark National Historic Trail. You'll find historical markers along the way, connecting you to the rich past of the region. It's a perfect choice for family cycling or anyone seeking a beginner-friendly ride with a blend of natural beauty and history.

Last updated: June 9, 2026

Tips

The surface for a segment of your route may not be suitable

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

After 783 m for 38.4 km

Waypoints

A

Start point

Parking

Get Directions

1

172 m

Historic Downtown St. Charles

Highlight (Segment) • Historical Site

Historic St. Charles is just a 30-minute drive from downtown St. Louis. The brick streets in its Nationally Registered Historic District add to its charm. You can find special items like home accessories, jewelry, and unique gifts in the shops there. It's a great place to stop and take a break!

Tip by

2

7.64 km

Shaded segment

Highlight (Segment) • Trail

This portion of the Katy Trail offers shaded relief from direct sunlight. Here, you'll find trees lining the path, providing natural cover.

Tip by

3

13.3 km

Easternmost part of the Katy Trail

Highlight (Segment) • Trail

Miles of packed gravel and beautiful landscapes.

Tip by

4

20.0 km

Machens

Highlight • Trail

This marks the easternmost point of the Katy Trail. Machens resides at mile-marker 27 along the Missouri River, tracing the northern bank for a significant stretch of the trail.

Tip by

B

39.9 km

End point

Parking

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Way Types & Surfaces

Way Types

38.2 km

1.23 km

332 m

< 100 m

< 100 m

Surfaces

38.2 km

1.05 km

332 m

265 m

< 100 m

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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

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Today

Monday 13 July

31°C

21°C

0 %

Additional weather tips

Max wind speed: 17.0 km/h

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Frequently Asked Questions

How long does it typically take to cycle the Katy Trail from St. Charles to Machens?

The route is approximately 40 kilometers (24.8 miles) long. For a racebike, the estimated cycling duration is around 2 hours and 45 minutes, but this can vary based on your pace and stops along the way. It's a relatively flat ride, making it suitable for a steady pace.

Is this section of the Katy Trail suitable for beginner cyclists?

Yes, this section is generally considered easy and very suitable for beginners. The trail is built on a former railroad corridor, resulting in exceptionally flat terrain with minimal elevation changes. While some parts have crushed limestone, which is well-packed, it's a relaxing and easy-going ride for most.

What is the terrain and surface like on the Katy Trail from St. Charles to Machens?

The terrain is predominantly flat, following the former railroad bed. The surface primarily consists of well-packed crushed limestone. While suitable for most bikes, road bikes with tires 25mm or wider, mountain bikes, hybrids, and comfort bikes are recommended. Be aware that some sections, especially closer to Machens, might have rougher, looser gravel.

Where can I park to access the Katy Trail near St. Charles?

St. Charles is a popular and accessible starting point for this section of the Katy Trail. You can typically find parking near Frontier Park in Historic Downtown St. Charles, which is where the trail officially relaunches.

What are the main points of interest along the route?

You'll encounter several interesting spots. Starting in Historic Downtown St. Charles, you'll find historical charm. The trail also features a shaded segment providing relief. As you ride, you'll be on the easternmost part of the Katy Trail, eventually reaching Machens. Klondike Park, accessible from the trail, also offers scenic views of former quarry pits and the Missouri River Valley.

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

Spring and fall are generally the best times to cycle this section of the Katy Trail. The weather is milder, and the scenery is vibrant with spring blooms or autumn foliage. Summer can be enjoyable, but be prepared for warmer temperatures and potential humidity. Always check weather conditions before you go.

Is the Katy Trail: St. Charles to Machens dog-friendly?

Yes, the Katy Trail State Park is generally dog-friendly. Dogs are permitted on the trail but must be kept on a leash at all times. Please remember to clean up after your pet to keep the trail enjoyable for everyone.

Are there any fees or permits required to use the Katy Trail State Park?

No, there are no entrance fees or permits required to access and use the Katy Trail State Park. It is free for public use, making it an accessible option for outdoor recreation.

Does this section of the Katy Trail connect with other paths?

Yes, the route is entirely part of the Katy Trail and Katy Trail State Park. It also briefly intersects with sections of the Mississippi River Trail (Missouri), Missouri Greenway, and Boschert Greenway.

What should I know about potential flooding near Machens?

Due to its low elevation and proximity to the confluence of the Missouri and Mississippi Rivers, the section of the trail near Machens can occasionally be subject to flooding. It's always a good idea to check the trail conditions and weather forecasts before planning your ride, especially after heavy rains, as sections might be temporarily closed.

Are there places to eat or stay near the trailheads?

St. Charles offers numerous amenities, including cafes, restaurants, and accommodation options, particularly in its historic downtown area. Machens, being a tiny farm junction, has very limited facilities. Therefore, it's advisable to plan for food and water, especially if you're starting or ending your ride in Machens.

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