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Routes
Road cycling routes
United States
Missouri
St. Louis County
Oakville

Oakville — Eureka loop

Hard

4.9

(8149)

8,956

riders

Oakville — Eureka loop

05:19

115km

1,080m

Road cycling

This difficult 71.6-mile road cycling loop in St. Louis County offers a significant physical challenge with 3541 feet of elevation gain.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

88.9 km

Grant's Trail at Snyder Memorial Park

Highlight (Segment) • Trail

Great rail trail. Overall, fantastic conditions. Only downside is that the trail crosses several streets, and bikes have to stop at stop signs and traffic lights.

Tip by

2

105 km

This bridge not only crosses the River Des Peres, but also quite literally bridges between Grant's Trail (also known as the Gravois Greenway) to the west, and the River Des Peres Greenway on the east side of the river.

Tip by

B

115 km

End point

Parking

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Way Types & Surfaces

Way Types

46.3 km

29.7 km

24.8 km

14.6 km

< 100 m

< 100 m

Surfaces

95.2 km

20.0 km

174 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 (280 m)

Lowest point (120 m)

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Weather

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Today

Wednesday 1 July

36°C

24°C

0 %

Additional weather tips

Max wind speed: 13.0 km/h

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Frequently Asked Questions

What is the terrain like on the Oakville — Eureka loop?

This route is primarily well-paved, designed for racebikes. However, be prepared for some segments that might be unpaved and challenging, potentially requiring you to push your bike. It offers a varied cycling experience.

What makes this cycling route challenging?

The Oakville — Eureka loop is considered a difficult road ride due to its significant length of approximately 115 kilometers (71.5 miles) and substantial elevation gain of around 1,080 meters (3,543 feet). It requires very good fitness and is best suited for experienced road cyclists seeking a physical challenge.

Are there any notable sights or landmarks along the way?

Yes, the route includes points of interest such as Grant's Trail at Snyder Memorial Park and the Bridge Over River des Peres on Grant's Trail. While specific scenic highlights are not extensively detailed, you'll traverse diverse scenery typical of St. Louis County, potentially including riverfront views and park landscapes.

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

Given the demanding nature of the route, spring and fall are generally the best times to cycle the Oakville — Eureka loop. The milder temperatures are more comfortable for sustained effort, and the scenery can be particularly beautiful. Summer can be hot and humid, while winter may present icy conditions on some segments.

Where can I park to access the Oakville — Eureka loop?

Specific parking areas for the entire loop are not detailed, but you can typically find parking near access points to trails like Grant's Trail, which is part of this route. Check local St. Louis County park regulations for designated parking lots near potential starting points in Oakville or Eureka.

Does the route intersect with other well-known trails?

Yes, the Oakville — Eureka loop incorporates sections of several other trails. Notably, it covers about 21% of the Mississippi River Trail (Missouri) and 14% of the Gravois Greenway. You'll also find smaller segments of Grant's Trail and the River des Peres Greenway.

Is the Oakville — Eureka loop dog-friendly?

This is a challenging road cycling route, and while some sections might pass through parks where leashed dogs are allowed, the overall length and difficulty make it generally unsuitable for bringing dogs along on the ride itself. If you plan to visit specific park areas along the route, always check their individual dog policies.

Do I need a permit or pay an entrance fee to cycle this route?

Generally, no specific permits or entrance fees are required for road cycling on public roads in St. Louis County. However, if you enter any specific county or state parks along the route, always check their individual regulations, as some may have fees or specific rules for cyclists.

Are there public transport options to reach the starting points of the loop?

Public transport options in St. Louis County are available, but direct access to specific starting points for a long cycling loop like this can be limited. You would need to research local MetroBus routes that serve Oakville or Eureka and confirm if they accommodate bicycles, especially for a racebike.

What kind of scenery can I expect on this ride?

The route traverses diverse landscapes within St. Louis County. While not exclusively a scenic trail, you can expect a mix of suburban roads, potentially some riverfront views, and areas that hint at the woodland and riverside scenery found in nearby parks like Castlewood State Park, which is known for views of the Meramec River Valley.

Are there any amenities like cafes or bike shops along the route?

As a long road cycling loop connecting two towns, you will find amenities in Oakville and Eureka, as well as potentially in smaller communities or commercial areas along the route. It's advisable to plan your stops for food, water, and any bike maintenance needs in advance, especially given the route's length.

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