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Routes
Bike touring routes & trails
United States
Nevada
Clark County
Henderson

River Mountains Loop Trail

Hard

2.5

(29)

79

riders

River Mountains Loop Trail

04:43

71.3km

980m

Cycling

Cycle the challenging 44.3-mile River Mountains Loop Trail for stunning views of Lake Mead, Hoover Dam, and historic railroad tunnels.

Last updated: February 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Lake Mead National Recreation Area

Waypoints

A

Start point

Parking

Get Directions

1

16.3 km

Giant Bicycle

Highlight • Monument

Obvious homage to the main sport practiced on the River Mountains Loop Trail: cycling.

Tip by

2

27.7 km

Railroad Tunnel Trail

Highlight (Segment) • Trail

The Railroad Tunnel Trail sits on miles of old railroad track that connected Las Vegas to Boulder City, eventually all the way to Hoover Dam. There are 5 tunnels located …

Tip by

3

32.9 km

Hoover Dam

Highlight • Monument

The massive dam was built between 1930 and 1935 with the main purpose of providing controlled water delivery to the surrounding states of Arizona, Nevada and California and to generate …

Tip by

4

48.5 km

Boulder City Historic District

Highlight (Segment) • Historical Site

Don't miss the historic district of this town built for the workers of Hoover Dam in the 1930s. As you ride along Arizona Street you'll be able to spot historical landmarks such as Boulder Theater and Boulder Dam Hotel.

Tip by

B

71.3 km

End point

Parking

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Way Types & Surfaces

Way Types

54.9 km

7.94 km

4.30 km

4.17 km

< 100 m

Surfaces

35.7 km

26.0 km

9.11 km

471 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.

Highest point (810 m)

Lowest point (320 m)

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Weather

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Today

Thursday 7 May

33°C

21°C

0 %

Additional weather tips

Max wind speed: 12.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How long does it typically take to cycle the River Mountains Loop Trail?

For touring cyclists, completing the full 34-35 mile loop generally takes around 4-5 hours. This duration accounts for the trail's continuous uphill and downhill sections and allows time to enjoy the scenery and notable features.

What is the terrain like on this trail?

The trail is a 12-foot wide, paved surface, but don't let that fool you into thinking it's flat. It features continuous uphill and downhill sections, making it quite hilly and curvy. You'll encounter switchbacks, drainage canals, and even tunnels. Some sections, like the 'Three Sisters' around mile marker 6.5, have grades up to 7.8%.

What notable sights will I see along the River Mountains Loop Trail?

You'll be treated to panoramic views of Lake Mead and rugged desert landscapes. Key highlights include the historic Railroad Tunnel Trail, which features five tunnels used during the Hoover Dam's construction, and the impressive Hoover Dam itself. You'll also pass through the Boulder City Historic District and might spot the Giant Bicycle monument.

Where can I park and access the River Mountains Loop Trail?

The trail is well-maintained with multiple access points. You can find parking in Henderson, Lake Mead National Recreation Area, and Boulder City. These various trailheads make it easy to start your ride from different locations around the loop.

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

The best time to cycle is typically during the cooler months, from fall through spring (October to April). Summers can be extremely hot, making the ride much more challenging and potentially unsafe due to the desert environment. Early mornings are also recommended to avoid the midday heat, especially during shoulder seasons.

Is the River Mountains Loop Trail dog-friendly?

Yes, dogs are generally allowed on the trail, but they must be kept on a leash. Remember to bring plenty of water for your pet, as the desert environment can be harsh, and shade is limited.

Are there any permits or fees required to access the trail, especially within Lake Mead National Recreation Area?

A portion of the trail runs through the Lake Mead National Recreation Area. While the trail itself doesn't require a separate permit, there may be entrance fees to access certain areas of the park, depending on your entry point. You can find detailed information on fees and regulations on the official NPS website: nps.gov.

Are there amenities like restrooms or bike repair stations along the route?

Yes, the trail is equipped with accessible pit toilets and trash receptacles at various points. You'll also find self-service bike repair stations, which are very helpful for minor adjustments or fixes during your ride.

Is there a recommended direction to cycle the loop for a better experience?

Some cyclists find riding the loop counter-clockwise to be slightly less strenuous, as it can distribute the more significant climbs differently. However, if you're looking for a challenge, riding clockwise will present steeper grades, particularly in sections like the 'Three Sisters' where grades can reach up to 7.8%.

Does the River Mountains Loop Trail connect with other paths?

Yes, the route incorporates sections of several other trails. You'll find yourself on parts of the Union Pacific Railroad Trail, Boulder Highway Trail, Railroad Tunnel Trail, and the Historic Railroad Trail, among others, as you navigate the loop.

Is the River Mountains Loop Trail suitable for beginners?

While paved, the trail is considered a 'moderate challenge' for touring cyclists due to its consistent elevation changes and hilly, curvy nature. Beginners on traditional bikes might find it quite demanding. If you're new to cycling or prefer a less strenuous experience, consider renting an electric bike to fully enjoy the ride.

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