more stats
2.4 miles
Distance
374 ft
Climb
-383 ft
Descent
00:24:22
Avg time
-10 ft
Altitude change
2,926 ft
Altitude min
3,148 ft
Altitude max
3,148 ft
Altitude start
3,139 ft
Altitude end
-0.076%
Grade
-22.736%
Grade max
20.955%
Grade min
5,004 ft
Distance climb
1 mile
Distance down
1,087 ft
Distance flat
00:24:22
Avg time

Inner Caldera Details

  • Activities
    • Mountain Bike
    • Hike
    • Trail Running
  • Riding Area
    Bootleg Canyon
    Boulder City, Nevada
  • Difficulty Rating
    Blue Rate
  • Voted Difficulty
    Black Diamond (2 votes)
  • Local Popularity
    75 in Mountain Biking [+]
    • 5 in Trail Running
    • 70 in Hiking
  • Global Ranking
    #81334 in Mountain Biking [+]
    • #91145 in Trail Running
    • #96438 in Hiking
  • Trail Type
    Singletrack
  • Bike Type
    AM
  • Direction
    Both Directions
  • Climb Difficulty
    Green
  • Dogs Allowed
    Yes
  • TTFs on Trail
    Rock Face, Rock Garden, Roller Coaster

First section is a little tricky, but fun. Close to a Black diamond. Once you reach the bottom, you have a slow gradual climb back up to the middle parking lot. Trail is both directions but you will want to ride this clockwise.

Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 1 rides
  • 6 miles average
6 Months
  • 14 rides
  • 11 miles avg distance
All
  • 301 rides
  • Last: Sep 26, 2026
c1c2c3c4
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Status:
on Feb 19, 2026
Ideal
Avg: 3.8 (15 votes)
Your vote: 0

view (2,079)
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      Directions to inner-caldera trailhead (35.997912, -114.867398)
      View on Discover Map

      Photos

      2 more »
      mtb
      192 |
      Nov 16, 2016 @ 1:38pm
      Nov 16, 2016
      mtb
      194 |
      Nov 16, 2016 @ 1:38pm
      Nov 16, 2016

      Videos

      4 more »
      Orbea Wild FS / Innner Caldera @ Bootleg Canyon
      mtb
      6:23 | 229 | Nov 13, 2021 , Boulder City
      Inner Caldera
      mtb
      3:48 | 288 | Mar 16, 2014 , Boulder City
      Inner Caldera Loop
      mtb
      6:38 | 312 | Jan 17, 2010 , Boulder City
      Inner Caldera Loop
      mtb
      6:38 | 198 | Jan 17, 2010 , Boulder City

      Routes with this trail

      27
      BB Route: Bootleg Canyon - Intermediate, Long
      14 miles • 1,548 ft • 7 •
      A little longer route in Bootleg Canyon for intermediate riders.
      117
      Bootleg Cross Country Bonanza
      33 miles • 3,453 ft • 41 • Loop •
      Cross country loop that provides a good tour of Bootleg Canyon
      42
      The King of Vegas
      9 miles • 1,054 ft • 35 •
      The king of vegas is something i just made up
      3.8 ★★★★★
      15 Ratings
      5 ★ 20%
      4 ★ 47%
      3 ★ 27%
      2 ★
      1 ★ 7%

      4 Reviews & Comments

      bizango-x bizango-x
      Rode down the east side of the inner loop and up the east side of the outer loop. That rode really well. I haven’t been on the west sides of the loops.
      pepismilk
      Riding this counterclockwise is fun for about 2/3rds of the way, and then after some fairly spicy (for a blue) rock climbing there's just a literal wall that looks like a trailbuilder's idea of a prank. This is the first blue where I've had to fully circumvent a trail feature like that, and I don't have even the slightest clue how anyone would get up it, so... be ready for that.
      BenKoe
      I rode up the west side and omg it was a nightmare, no clue how this is a blue (way harder). The risk to reward is also insane, there's no exposure or anything but the loose rocks and sandy runouts on every steep is asking for a front tire to slide out. Definitely don't climb up the west side!

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      Nearby Trails

      Bootleg Canyon

      Frequently Asked Questions

      ▼ Where is Inner Caldera located?
      Inner Caldera is located in Bootleg Canyon, Boulder City, Nevada, United States. It is part of the Bootleg Canyon trail network. The trailhead is located at coordinates 35.99791, -114.8674.
      ▼ How hard is Inner Caldera?
      Inner Caldera is rated as Blue difficulty. The average grade is 0.076%. The climb difficulty is rated Green.
      ▼ What is the elevation gain for Inner Caldera?
      Inner Caldera has 374 ft of elevation gain. The trail has 383 ft of elevation descent. The elevation ranges from 2,926 ft to 3,148 ft.
      ▼ Is Inner Caldera a point to point trail?
      Inner Caldera is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
      ▼ How long is Inner Caldera?
      Inner Caldera is 2.4 miles long. The trail type is singletrack.
      ▼ Are dogs allowed on Inner Caldera?
      Yes, dogs are allowed on Inner Caldera. Please keep dogs on a leash where required and clean up after them.
      ▼ How do I access Inner Caldera? Where is the closest parking trailhead?
      The closest parking and trailhead locations to Inner Caldera are: View all parking locations in the area.
      ▼ How long does it take to ride Inner Caldera?
      Based on recorded activities, it takes an average of 25 minutes to ride Inner Caldera. The trail is 2.4 miles long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
      ▼ How busy is Inner Caldera?
      Inner Caldera is a very popular trail. There have been 1,809 recorded activities on this trail. The trail has received 2,079 check-ins. View recent activity on this trail.

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