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Road cycling routes
United States
Missouri
Moniteau County

Katy Trail State Park

The best road cycling routes in Katy Trail State Park

By Fede from komoot

·

Updated May 10, 2026

If you've ever tried planning road cycling in Katy Trail State Park, you know how overwhelming the options can be. With so many miles of trail, it's hard to tell which routes are genuinely worth your time and effort, and which are just filler. We get it – you want the best experience without endless guesswork.

That's where we come in. Our komoot community has mapped, ridden, and reviewed countless routes here, giving us the inside scoop. This guide is your shortcut to the standout road cycling routes in Katy Trail State Park, curated to save you the hassle and get you straight to the good stuff.

Road cycling here is truly unique, defined by the longest rail-trail in the United States. Expect generally flat, paved surfaces that trace the Missouri River, offering consistent gradients perfect for road bikes. You'll roll past limestone bluffs, through dense woodlands, and alongside open agricultural fields. It’s a landscape that feels both historic and alive, with options ranging from easy spins to more demanding distances.

If you only do one route, we'd point you to the Katy Trail and Creve Coeur Lake Loop. At 22.1 miles (35.6 km) with only 326 feet (99 m) of elevation gain, it’s our pick for a fantastic first visit, offering beautiful lake views and a taste of the Katy Trail's charm. For those looking for a longer, slightly more challenging ride, the Katy Trail and Weldon Spring Loop covers 31.0 miles (49.9 km) and features scenic stretches along the Missouri River. Dive in and discover why more than 1,800 road cyclists have explored this incredible park with komoot.

If you only do 3 of these routes

  1. 1

    Katy Trail and Creve Coeur Lake Loop
  2. 2

    Katy Trail and Weldon Spring Loop
  3. 3

    Katy Trail and Earth City Levee Loop

Compare these routes at a glance

Trail

Distance

Elevation

Difficulty

Katy Trail and Creve Coeur Lake Loop

35.6 km

100 m

Moderate

Katy Trail and Weldon Spring Loop

49.9 km

240 m

Moderate

Katy Trail and Earth City Levee Loop

52.9 km

80 m

Moderate

Historic Bridge – Defiance loop from Lost Valley Trail Parking

78.7 km

740 m

Moderate

Bums Cave loop from Marthasville

77.8 km

530 m

Hard

Katy Trail: St. Charles to Machens

39.9 km

50 m

Moderate

Katy Trail and Busch Greenway Loop

87.9 km

490 m

Moderate

Historic Downtown St. Charles – New Town Lake loop from Saint Charles

24.6 km

60 m

Easy

Le Cave Memorial Trailhead – Centaur Road loop from Daniel Boone Bridge

40.0 km

240 m

Moderate

Boschert Greenway and Katy Trail Loop

22.8 km

90 m

Moderate

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1.

Katy Trail and Creve Coeur Lake Loop

35.6km

02:03

100m

100m

The Katy Trail and Creve Coeur Lake Loop offers a delightful blend of crushed limestone rail-trail and smooth paved paths, making it a diverse road cycling experience. You'll glide past dense woodlands and catch glimpses of the Missouri River on the historic Katy Trail, then transition to the scenic Creve Coeur Lake Loop, where you'll enjoy picturesque views of the lake, wetlands, and native wildflowers. It's a moderate 22.1-mile (35.6 km) ride that feels more like a leisurely tour than a strenuous workout, perfect for soaking in the local scenery.

This route is generally accessible, but ensure your road bike has tires 25mm or wider to comfortably handle the crushed limestone sections of the Katy Trail, which can sometimes be a bit soft or bumpy after rain. The Creve Coeur Lake Memorial Park is a popular spot, so consider an early start to secure parking, especially on pleasant weekend days. The trail is enjoyable across multiple seasons, with spring and autumn providing particularly comfortable temperatures and beautiful natural displays.

This combined loop is notable for its historical significance, as the Katy Trail is the longest rail-trail in the United States, built on a former railroad corridor and part of the Lewis and Clark National Historic Trail. The route offers a unique blend of expansive river views and the vibrant environment surrounding Creve Coeur Lake, Missouri's second-largest natural lake. It's an excellent option for cyclists seeking a varied ride that connects natural beauty with historical context.

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2.

Katy Trail and Weldon Spring Loop

49.9km

02:47

240m

240m

The Katy Trail and Weldon Spring Loop offers a dynamic road cycling experience, blending the famously flat, crushed limestone surface of the Katy Trail with the more rugged, hilly terrain of the Weldon Spring Conservation Area. You'll enjoy peaceful stretches alongside the Missouri River, passing through forests and wetlands, before encountering the challenging gravel and dirt paths that wind through ridgetops and bottomlands, offering diverse scenery and potential wildlife sightings.

This moderate 31.0-mile (49.9 km) route, with an elevation gain of 773 feet (236 metres) and an estimated duration of 2 hours and 47 minutes, is best tackled by road cyclists with tires 25mm or wider to handle the varied surfaces. The Weldon Spring Conservation Area provides direct access to the Katy Trail, making it a convenient starting point for this unique blend of rail-trail and natural area cycling.

What makes this loop stand out is its ability to showcase a wide range of Missouri landscapes in a single ride, from the tranquil river views to the dramatic bluffs within the conservation area. It's a great option for cyclists looking to test their versatility and enjoy both the ease of a rail-trail and the challenge of more undulating terrain, offering a comprehensive tour of the region's natural beauty.

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3.

Katy Trail and Earth City Levee Loop

52.9km

03:07

80m

80m

The Katy Trail and Earth City Levee Loop offers a unique blend of surfaces and scenery for cyclists near St. Louis. You'll ride along the historic Katy Trail's crushed limestone, enjoying views of the Missouri River, its floodplains, and dramatic limestone bluffs, before transitioning to the paved Earth City Levee with its wide-open river vistas. Keep an eye out for wildlife like white-tailed deer and various birds as you pass through woodlands, wetlands, and open agricultural fields on this 32.8-mile (52.9 km) journey with a gentle 246 feet (75 metres) of elevation gain. It's a great way to experience the diverse natural features of the region.

Planning your ride on this moderate route, which typically takes around 3 hours and 7 minutes, requires a quick check of current conditions. Some sections, especially in Riverwoods Park, have seen permanent closures due to flooding, and temporary construction closures can occur near the 370 bridge. Parking for Earth City Levee Loop cycling is generally available at various access points, and you'll find amenities like restrooms and water fountains at many trailheads. Consider spring or autumn for the best weather and most vibrant scenery.

This loop connects you to America's longest "rails-to-trails" project, the Katy Trail, which follows the path of the former Missouri-Kansas-Texas Railroad and much of the route taken by Lewis and Clark. The Earth City Levee Trail is also part of the broader Missouri River Greenway network, linking to the Riverwoods Trail and downtown St. Charles via the 370 Discovery Bridge. This rich history and connectivity make the Katy Trail Earth City Levee Loop a significant and rewarding ride in the St. Louis area.

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5.

Bums Cave loop from Marthasville

77.8km

05:44

530m

530m

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

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6.

Katy Trail: St. Charles to Machens

39.9km

02:44

50m

40m

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.

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7.

Katy Trail and Busch Greenway Loop

87.9km

04:06

490m

490m

Embark on the Katy Trail and Busch Greenway Loop for a diverse road cycling experience that showcases Missouri's varied landscapes. You'll pedal along the historic Katy Trail, enjoying long stretches beside the Missouri River, with towering bluffs and lush forests as your backdrop. The route then transitions to the Busch Greenway, where paved paths wind through hardwood forests, open fields, and past a tranquil reservoir, even featuring a scenic boardwalk. This moderate 54.6-mile (87.9 km) loop, with 1608 feet (490 metres) of elevation gain, offers a mix of flat rail-trail and gently rolling hills, making for an engaging ride that typically takes around 4 hours and 6 minutes.

When planning your visit, be mindful of the Katy Trail's crushed limestone surface; while suitable for road bikes with wider tires, it can be softer after rain or dusty in dry conditions. The Busch Greenway, in contrast, is largely paved, offering a smoother ride. A great starting point is the Missouri Research Park trailhead, which conveniently provides a self-service bike repair station. Spring and autumn are ideal seasons for this ride, offering pleasant temperatures and beautiful scenery, from wildflowers to vibrant fall foliage.

This loop connects two significant cycling pathways, offering a blend of natural beauty and historical context. The Katy Trail is renowned as the longest continuous rail-trail in the United States, preserving a piece of Missouri's past with historic markers and old depots. The Busch Greenway serves as a vital connector, linking the Katy Trail to the August A. Busch Memorial Conservation Area, providing opportunities for wildlife spotting and access to important natural areas. It's a fantastic way to explore the St. Charles area's top-rated road cycling loops.

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9.

Le Cave Memorial Trailhead – Centaur Road loop from Daniel Boone Bridge

40.0km

02:08

240m

240m

This road cycling loop offers a delightful mix of smooth asphalt trails and scenic river views, making it a popular choice for cyclists in St. Charles County. You'll glide along the Monarch-Chesterfield Levee Trail, enjoying elevated perspectives of the Missouri River and open grasslands, before crossing the Daniel Boone Bridge with its panoramic vistas of the river and limestone bluffs. The route is mostly flat and paved, providing an accessible and enjoyable experience for many.

Starting from the John L. LeCave Memorial Trailhead, you'll find convenient parking to begin your ride. The trailhead itself holds memorial significance, reminding all users to 'Share the Road,' a crucial message for cyclists. While the route is generally accessible, checking local weather conditions is always recommended, especially when cycling near the river.

This loop is a key connector, linking the Missouri Greenway on the south side of the river with the renowned Katy Trail State Park on the north. The protected path on the Daniel Boone Bridge allows for safe enjoyment of impressive views, making it a vital link in the regional trail system. It's a great option for those looking for beginner friendly road cycling routes in the St. Louis area.

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10.

Boschert Greenway and Katy Trail Loop

22.8km

01:08

90m

90m

Embark on the Boschert Greenway and Katy Trail Loop for a moderate road cycling adventure spanning 14.2 miles (22.8 km). You will gain 293 feet (89 metres) in elevation over an estimated 1 hour and 8 minutes. This route offers a varied experience, transitioning from paved greenway sections through New Town and past the lakes of Fox Hill Park, to the famous crushed limestone of the Katy Trail. As you cycle, you can enjoy elevated views of the Missouri River valley and spot the unique "Blomstre" sculpture.

When planning your visit, remember that both the Boschert Greenway and the Katy Trail are generally considered easy to moderate for cycling, making them suitable for many fitness levels. The Boschert Greenway is mostly paved, while the Katy Trail features hard-packed crushed limestone. While road bikes are generally fine, wider tires are often recommended for comfort on the Katy Trail, especially if the surface is sandy or mushy after rain. Parking is available at various access points along the route, making it easy to start your ride.

The Katy Trail section of this loop follows the Missouri River, offering picturesque views of majestic river bluffs, peaceful farmland, and thick forests. This part of the trail is a significant piece of Missouri's outdoor infrastructure, built on a former railroad corridor. The combination of urban greenway and historic rail-trail provides a unique blend of scenery and cycling surfaces, connecting you to Historic Downtown St. Charles along the way.

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Tips from the Community

oliviakellis
July 28, 2025, Bums Cave

Known locally as “Devil’s Boot Cave,” this natural overhang carved in sandstone resembles the shape of a boot and stretches roughly 25 feet deep and wide, near Marthasville. Once used as a pioneer shelter and noted by local schools for nature trips, the site offers a little geological curiosity beside the trail—a hands-on reminder of Missouri’s limestone landscape and early frontier life. Great for a quick stop and photo op!

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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.

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Alexandra P
January 3, 2024, Katy Trail

This section of the Katy Trail extends from Greens Bottom Road to Missouri Research Trail. Here, you'll discover a shady, compact gravel road with views of the Missouri River.

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Alexandra P
January 3, 2024, Busch Greenway

The Busch Greenway is a well-paved multi-use path weaving through the Weldon Springs Conservation Area. Along the way you will encounter lakes, vast open prairies, and the authentic landscapes native to Missouri.

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Matthew
January 3, 2024, Boardwalk

In total, the Missouri Research Park Trail is just under 5 miles long. There is a wooden bridge/boardwalk here next to the Missouri Bluffs golf course that is a pretty unique part of the trail.

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

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A fantastic and super flat road that was once a floodplain before the levee was built. It's great for road cycling as it has wide shoulders that give you plenty of space to ride comfortably and fast.

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Creve Coeur Lake is a 320-acre lake located in Creve Coeur Lake Memorial Park. The park dates back to 1945 and now offers a place for picnics, non-motorized boating, and fishing.

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Frequently Asked Questions

What is the general difficulty level for road cycling in Katy Trail State Park?

Katy Trail State Park is known for its generally flat and consistent gradients, making it accessible for various skill levels. While most routes are moderate, there are 38 easy routes and 56 moderate routes available, with a few more challenging options for experienced cyclists.

Are there family-friendly road cycling routes in Katy Trail State Park?

Yes, the park offers numerous family-friendly options. The flat, former railway line surface is ideal for all ages. An excellent choice for families or beginners is the Creve Coeur Lake – Mallard Lake loop from Jane Downing Island, which is an easy 19.1 km (11.9 miles) route.

What are the typical distances for road cycling routes in Katy Trail State Park?

Road cycling routes in Katy Trail State Park vary in length, with options ranging from shorter loops around 19 km (11.9 miles) to longer excursions up to 78.7 km (48.9 miles). This allows cyclists to choose a distance that suits their fitness level and available time.

Where can I find parking and trailheads for road cycling in Katy Trail State Park?

Katy Trail State Park features numerous trailheads along its length, many of which offer parking facilities. Specific parking availability can vary by trailhead, so it's advisable to check local signage upon arrival. Popular starting points often include areas near towns that border the trail.

What is the best season for road biking in Katy Trail State Park?

Spring and fall are generally considered the best seasons for road biking in Katy Trail State Park. The weather is typically mild, and the natural scenery, whether blooming in spring or showcasing vibrant fall foliage, is particularly beautiful. Summer can be warm and humid, while winter may bring colder temperatures and potential trail closures due to ice or snow.

What kind of views and natural features can I expect along the road cycling routes?

The routes in Katy Trail State Park offer diverse scenery, tracing the Missouri River with views of limestone bluffs, dense woodlands, and open agricultural fields. You can also discover natural monuments such as the Missouri River itself, The Manitou Bluffs, and Torbett Spring.

Are there any interesting landmarks or attractions to see while road cycling?

Yes, there are several interesting landmarks along the trail. Cyclists can explore the historic Rocheport Tunnel, enjoy the Missouri River Overlook, or see the unique art installation Boathenge. The Rocheport Trailhead is also a notable point of interest.

What do other road cyclists enjoy most about road cycling in Katy Trail State Park?

The area is highly rated by the komoot community, with an average score of 4.4 stars from over 40 reviews. Reviewers often praise the flat, well-maintained surface, the scenic views of the Missouri River, and the peaceful passages through forests and open fields that make for a relaxing ride.

How many road cycling routes are available in Katy Trail State Park?

There are nearly 100 road cycling routes available in Katy Trail State Park, offering a wide variety of options for different preferences and skill levels. This includes 38 easy routes, 56 moderate routes, and 5 difficult routes.

Are there any circular road cycling routes that incorporate parts of the Katy Trail?

Yes, many routes in the park are designed as loops that incorporate sections of the Katy Trail with other scenic roads. Examples include the popular Katy Trail and Weldon Spring Loop, a moderate 49.9 km (31.0 miles) path, or the Katy Trail and Earth City Levee Loop, which is 52.9 km (32.8 miles).

What are the trail conditions typically like for road biking on the Katy Trail?

The Katy Trail is primarily a crushed limestone surface, which is generally well-maintained and suitable for road bikes, though wider tires might offer more comfort. It's known for its consistent, smooth surface, making for an enjoyable ride. Conditions can vary slightly with weather, so checking local reports after heavy rain is always a good idea.

Are there cafes or places to stop for refreshments along the Katy Trail road bike routes?

Yes, the Katy Trail passes through or near several small towns and communities that offer opportunities for refreshments. Many trailheads are located in or close to towns where you can find cafes, restaurants, and convenience stores to refuel during your ride.

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