Quarry (FS 350.B)

Total Miles1.1
Technical Rating
6Moderate
Best TimeSpring, Summer, Fall
Trail TypeHigh-Clearance 4x4 Trail
Accessible By
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Trail Overview

Quarry (FS 350.B) is a short but highly challenging, scenic trail designed for experienced offroad drivers looking to test their skills and vehicle capability on rugged terrain with spectacular views of Pikes Peak. Stretching just over one mile through the Pike National Forest, this route climbs approximately 470 feet, reaching a maximum elevation of 8,022 feet. The adventure begins with steep 14% to 15% grades at both the east and west access points, requiring careful navigation over loose rock and tight squeezes. While the wider west access point offers ample room for Jeeps and high-clearance four-wheel-drive vehicles to ascend through a heavily forested, rutted, and root-laden path, the eastern entrance is significantly tighter with sharp switchbacks near the base that are best suited for smaller rigs or SxSs. The defining highlight of this route is a technical granite playground near the eastern end, where drivers must pick their lines through a series of formidable ledges and vertical steps ranging from 18 inches to over five feet tall. Convenient flat spots between these granite obstacles allow drivers to stop, scout, and properly position their vehicles before making the climb or descent. As the dirt and loose rock give way to expansive slickrock and broken granite near the top, travelers are treated to stunning, wide-open views of Pikes Peak to the south. Because the trail is heavily eroded and prone to deep mud during the spring snowmelt or summer monsoon season, a high-clearance four-wheel-drive vehicle with adequate articulation is highly recommended to safely negotiate the terrain.

Photos of Quarry (FS 350.B)

Difficulty

The climbs at the access points pose no significant challenge. The trail is very rocky, rutted, eroded and tree-prone most way. However, this earns it's rating for the unavoidable set of vertical drop steps/ledges from 18" to over five-feet high near the east end of the trail. During the spring snowmelt or summer monsoon, deep mud is also possible.

Technical Rating

6

Status Reports

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Ayden Billings
Jul 30, 2026
2008 Polaris Ranger 500 Efi
Open
NormalMuddy/Wet
Some mud, cliffs on the east end are definitely showing wear, there is a way around them for smaller vehicles only.
Brian
Apr 26, 2026
2023 toyota tundra
Open
Normal
What fun that was! Stock 2023 Tundra CrewMax TRD. That long wheel-base-whew. Be prepared for stepped rock face with minimal 1 to 2ft drops, it get's more technical if you want it. I stacked a few rocks to protect my pretty truck, a couple gentle scraping on my rock sliders. Overall, so much fun!
Terry Smith
Mar 24, 2026
Open
DustyRough/Deteriorated
Only one other person though lots of atv,s close by in the Rainbow Falls area. Weather was great.
Lars F
Nov 16, 2025
2006 Land Rover LR3
Open
Dusty
Was able to do it as a beginner without issues, skipping the steps/ledges. There is a steep narrow detour around them. Fun trail!
Sean Badoud
Jun 30, 2025
Open
NormalMuddy/Wet
Jack R
Jun 22, 2025
1995 Land Rover Range Rover
Open
DustyNormal
T C
Feb 06, 2025
Open
NormalMuddy/Wet
Nikolay Sarychev
Dec 21, 2024
2019 Jeep Wrangler
Open
NormalMuddy/WetSnow/Ice
Not much snow or ice yet.
Terry Smith
Nov 20, 2024
Open
Snow/Ice
Normal with a small amount of snow but few issues
Andrew Breyton
Sep 21, 2024
2016 Toyota Tundra
Open
Normal
We ran the trail from east to west. The bulk of the action is in the first 1/4 mile of the trail with the stair steps and switchback at the east end. Neither were that bad as I was able to take the harder lines with a little working in my Tundra with armor and 34’s just fine. As with most trails at Rainbow Falls, you can really make it as hard or as easy as you want with the right line choices. If you’re worried about the obstacles, try running the trail from west to east and there’s plenty of room to turn around if you decide the obstacles at the top (east) are a little too much, everything until then is basically a loose rock road that can be easily negotiated with some good line choices. There’s also plenty of good areas to stop and take in the view of Pike’s Peak as well.
Michael V
May 11, 2024
2023 Toyota Tacoma
Open
Muddy/WetRough/Deteriorated
Everything is open. The rock obstacle that is required it getting more chewed up. Don’t think stock could do it but with 33” and the right line it can be done
Mike Chancey
May 05, 2024
2019 Toyota 4Runner
Open
NormalDustyMuddy/Wet
Fun trail going East to West (or North to South). The rock steps at the beginning were fun and plenty of options based on what your rig can handle. After that mostly loose rocks to maneuver and plenty of amazing scenery.
Nathan Collier
Apr 13, 2024
2019 Jeep Wrangler
Open
Dry and riding great! Started from the West heading East. I think next time I'll turn around after I get to the top. The down from there has a technical rock section (not too bad) and a steep switch back that I'm surprised I didn't roll on. 😮 Cleared everything though, so maybe just need to gain confidence offroading.
Josh O
Apr 06, 2024
Open
Normal

Quarry (FS 350.B) Trail can be accessed by the following ride types:

  • Single Track
  • 50 Inch
  • High Clearance

Quarry (FS 350.B) Map

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