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Routes
Mountain biking trails
United States
Nevada
Clark County
Boulder City

Inner Caldera Loop Trail

Easy

3.2

(20)

86

riders

Inner Caldera Loop Trail

00:24

4.01km

80m

Mountain biking

An easy 2.5-mile mountain biking loop in Bootleg Canyon, featuring rocky terrain and a desert landscape near Boulder City, Nevada.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

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1

1 m

Bootleg Canyon

Highlight • MTB Park

Bootleg Canyon is a great bike park just next to Boulder City and close to Las Vegas. You will find an extended network of trails for mountain biking as well …

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2

92 m

Inner Caldera (west leg)

Highlight (Segment) • Trail

The Inner Caldera loop is quite similar to the main Caldera loop, but is is much shorter and more challenging. This rocky trail is great for intermediate-advanced riders looking for …

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B

4.01 km

End point

Parking

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Way Types & Surfaces

Way Types

3.94 km

< 100 m

Surfaces

3.98 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 (980 m)

Lowest point (900 m)

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Weather

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Friday 10 July

39°C

27°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

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Frequently Asked Questions

How long does it typically take to mountain bike the Inner Caldera Loop Trail?

On average, mountain bikers complete the 2.4-mile (4 km) Inner Caldera Loop Trail in about 25 minutes. However, actual times can vary significantly based on your fitness level and trail conditions, as some sections are quite technical.

What is the terrain like on this trail?

The trail is characterized by very rocky terrain, featuring elements such as rock faces, rock gardens, and roller coasters. It is primarily a singletrack route, offering a challenging and technical mountain biking experience within a desert or canyon landscape.

Is the Inner Caldera Loop Trail suitable for beginners?

While officially rated as 'Blue' (intermediate), many riders consider this trail to be more challenging, with some sections approaching 'Black Diamond' (expert) difficulty. The first section, in particular, is described as 'a little tricky.' It's generally not recommended for true beginners due to its technical nature.

What is the recommended direction to ride the Inner Caldera Loop Trail?

It is highly recommended to ride the trail clockwise, especially for the initial section. While it can be ridden in both directions, riding clockwise often provides a more manageable experience through its challenging parts.

Are dogs allowed on the trail?

Yes, dogs are permitted on the Inner Caldera Loop Trail. Please ensure they are kept on a leash and that you clean up after them to maintain trail etiquette.

What is the best time of year to visit for mountain biking?

Given its desert location in Boulder City, Nevada, the best time to mountain bike the Inner Caldera Loop Trail is typically during the cooler months, from late fall through early spring (October to April). Summers can be extremely hot and are generally not recommended for strenuous activity.

Do I need a permit or pay an entrance fee to access the trail or Bootleg Canyon Mountain Bike Park?

Access to the trails within Bootleg Canyon, including the Inner Caldera Loop Trail, generally does not require a specific permit or entrance fee for day use. However, it's always a good idea to check local regulations or the official NPS website for any updates on park rules or special events.

Where can I park to access the Inner Caldera Loop Trail?

The Inner Caldera Loop Trail is located within Bootleg Canyon Mountain Bike Park in Boulder City, Nevada. There are designated parking areas within the park that provide access to the trail network, including this loop.

Does this trail connect with other routes in Bootleg Canyon?

Yes, the Inner Caldera Loop Trail is part of the extensive network within Bootleg Canyon. It directly incorporates the Inner Caldera (west leg) and also intersects with other trails such as Caldera (Easy), Boy Scout (Moderate), Skyline (Difficult), and Connector (Caldera/Inner Caldera).

Are there any notable features or viewpoints along the Inner Caldera Loop Trail?

The trail itself is a highlight for its technical mountain biking experience through rocky desert terrain. While specific named viewpoints are not detailed, the route offers scenic views of the surrounding canyon landscape. The trail is a popular route within the larger Bootleg Canyon area.

Nearby routes

Easy

Boulder Beach via River Mountain Trail

00:17h

5.58km

40m

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