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Routes
Bike touring routes & trails
United States
Missouri
St. Charles County

Busch Greenway, Katy Trail, and Hamburg Trail Loop

Routes
Bike touring routes & trails
United States
Missouri
St. Charles County

Busch Greenway, Katy Trail, and Hamburg Trail Loop

Moderate

5.0

(5508)

19,159

riders

Busch Greenway, Katy Trail, and Hamburg Trail Loop

03:34

53.8km

200m

Cycling

Embark on a moderate touring bicycle adventure with the Busch Greenway, Katy Trail, and Hamburg Trail Loop, a route spanning 33.5 miles (53.8 km) that will take you about 3 hours and 33 minutes to complete. You'll gain 643 feet (196 metres) in elevation as you cycle through a diverse landscape, from the open prairies and woods of the Weldon Springs Conservation Area, where the Busch Greenway meanders past lakes like the Mononame 207 Reservoir, to the peaceful views along the Katy Trail. The Hamburg Trail section offers a more rugged, green experience with the sound of running water accompanying you.

When planning your visit, be aware that the route features a mix of surfaces, including paved sections, crushed limestone, and crushed gravel. The Hamburg Trail, in particular, is not suitable for road bikes, so you should plan to use mountain or hybrid tires for this loop. For your convenience, a self-service bike repair station is available at a trailhead located within the Missouri Research Park, ensuring you're prepared for any minor adjustments needed during your ride.

This loop stands out for its unique combination of three distinct trails, offering a varied cycling experience that showcases the natural beauty of Missouri. You'll encounter fields of sunflowers and diverse flora, making each section feel fresh and engaging. The blend of different trail types and scenery ensures that your touring bicycle journey is anything but monotonous, providing a rich tapestry of sights and sounds throughout.

Last updated: April 23, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Katy Trail State Park

Weldon Spring Conservation Area

Waypoints

A

Start point

Parking

Get Directions

1

518 m

View of the Missouri River

Highlight • Viewpoint

This is a great viewpoint for the Missouri River, as well as a nice place for a snack break. The Missouri River is the longest river in the United States and flows from southwestern Montana to the Mississippi River in St. Louis.

Tip by

2

18.2 km

Busch Greenway Trail

Highlight (Segment) • Trail

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.

Tip by

3

21.2 km

Mononame 207 Reservoir

Highlight • Lake

The Mononame 207 Reservoir is a 22-acre lake off the side of the Busch Greenway. It's popular for fishing and has a pretty cool looking backdrop of trees. There's a spot with a bench on the north side of the lake where you can take a break and take in the view.

Tip by

4

24.9 km

Weldon Spring Site

Highlight • Monument

The Weldon Spring Site has an interesting past. They used to dump building rubble containing uranium and radium, along with other radioactive materials inside the mound. Nowadays you can climb up the stairs to the 75-foot disposal cell. At the top there are awesome views of parts of St. Charles and St. Louis counties.

Tip by

5

29.2 km

Hamburg Trail

Highlight (Segment) • Trail

The Hamburg Trail connects the Katy Trail with the August A. Busch Memorial Conservation Area. It's a vital 6-mile trail that connects to both the Mound and Lost Valley areas.

Tip by

6

34.3 km

This trail runs alongside the Missouri River, providing a relaxing ride with the soothing sounds of the water. The trail is well-maintained dirt with ample tree coverage, offering pleasant shade along the way.

Tip by

B

53.8 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

43.9 km

9.92 km

< 100 m

< 100 m

Surfaces

37.2 km

7.70 km

7.10 km

1.82 km

< 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.

Highest point (200 m)

Lowest point (130 m)

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Weather

Powered by Foreca

Saturday 22 August

31°C

21°C

-- %

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Frequently Asked Questions

Where can I park to access the Busch Greenway, Katy Trail, and Hamburg Trail Loop?

You can find parking at various access points. A convenient option is near the Missouri Research Park, which is adjacent to the Duckett Creek wastewater facility. This area also features a self-service bike repair station.

Is the Busch Greenway, Katy Trail, and Hamburg Trail Loop dog-friendly?

Yes, dogs are generally allowed on the trails within this loop. However, it's always best to keep your dog on a leash and ensure you clean up after them to maintain a pleasant experience for all users.

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

The loop is beautiful throughout many seasons. Spring and fall offer pleasant temperatures and vibrant scenery. Summer can be enjoyable, but be prepared for warmer weather. Always check local conditions before you go.

Are there any permits or entrance fees required for this trail?

No, there are generally no specific permits or entrance fees required to access the Busch Greenway, Katy Trail, or Hamburg Trail sections of this loop. However, as parts of the route are within Katy Trail State Park, it's good to be aware of any general state park regulations.

What type of bicycle is best suited for this loop?

Due to the varied terrain, a hybrid or mountain bike is recommended. While the Busch Greenway is paved and the Katy Trail is crushed limestone, the Hamburg Trail is crushed gravel and can be rougher, making it less suitable for road bikes.

What scenic views or points of interest can I expect along the route?

The loop offers diverse scenery, including views of the Missouri River from the View of the Missouri River and View of the Missouri River from Katy Trail State Park. You'll also pass through the Weldon Springs Conservation Area with lakes like Mononame 207 Reservoir, prairies, woods, and fields of sunflowers. The Weldon Spring Site and Interpretive Center also add cultural interest.

How long does it typically take to complete the Busch Greenway, Katy Trail, and Hamburg Trail Loop?

The loop is approximately 53.8 kilometers (33.4 miles) long. For touring cyclists, it typically takes around 3 hours and 33 minutes to complete, depending on your pace and stops.

Does this loop connect with other trails?

Yes, this loop is part of a larger network. It utilizes significant sections of the Katy Trail, Busch Greenway, and Hamburg Trail. It also intersects with or runs concurrently with sections of the ADT - Missouri - L - Seg 2, ADT - Missouri - L - Seg 1, Centennial Greenway, Creve Coeur Connector, and Missouri Research Park Trail.

Is this loop suitable for families or beginner cyclists?

The Busch Greenway portion is mostly paved and generally easy, making it suitable for families and beginners. However, the Hamburg Trail section involves crushed gravel and a gradual climb, which can be more challenging. Consider your group's comfort level with varied surfaces and some hills.

Are there any specific regulations or fees for cycling within Katy Trail State Park?

While there are no specific cycling fees for the Katy Trail itself, it's always wise to be aware of general state park rules and regulations when passing through Katy Trail State Park. These typically include respecting wildlife, staying on marked trails, and packing out what you pack in.

What is the terrain and surface like on the Busch Greenway, Katy Trail, and Hamburg Trail Loop?

The loop offers a varied experience. The Busch Greenway Trail is primarily paved. The Katy Trail section is made of crushed limestone. The Hamburg Trail is crushed gravel and can be rougher, featuring a gradual climb and a notable hill.

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