Open in App
Get this trail on your phone instantly.
more stats
1,132 ft
Distance
-156 ft
Descent
00:06:30
Avg time
-158 ft
Altitude change
3,365 ft
Altitude min
3,523 ft
Altitude max
3,523 ft
Altitude start
3,366 ft
Altitude end
-14%
Grade
-31.4%
Grade max
-2.1%
Grade min
1,115 ft
Distance down
16 ft
Distance flat
00:06:30
Avg time
Gem Slabs Details
-
Activities
- Mountain Bike
- Hike
- Trail Running
-
Riding AreaCatalina State Park / 50-Year
Tucson, Arizona -
Difficulty Rating
-
Voted DifficultyDouble Black Diamond (2 votes)
-
Local Popularity90 in Mountain Biking [+]
- 55 in Trail Running
- 45 in Hiking
-
Global Ranking
-
State Ranking
-
Trail TypeSingletrack
-
DirectionDownhill OnlyPopular Direction Shown
-
Trail VisibilitySometimes hard to follow
-
TTFs on TrailRock Face, Rock Garden
Very technical and fun alternative rock slab line for the Gem trail. Very steep in spots.
Local Trail Association
-
-
-
-
Please consider joining or donating to the local trail association to supportDonate to earn trail karma!
trail development & maintenance.
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 4 rides
- 11 miles average
6 Months
- 13 rides
- 12 miles avg distance
All
- 139 rides
- Last: Nov 10, 2026
Gem Slabs Trail Reports
more »
close
3D
Trail Conditions
- Unknown
- Snow Groomed
- Snow Packed
- Snow Covered
- Snow Cover Partial
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
- Dry
- Very Dry
Trail Flow (Ridden Direction)
Trailforks scans users activity logs to determine the most popular direction each trail is ridden. A good flowing trail network will have most trails flowing in a single direction according to their intension.
The colour categories are based on what percentage of users are riding a trail in its intended direction.
The colour categories are based on what percentage of users are riding a trail in its intended direction.
- > 96%
- > 90%
- > 80%
- > 70%
- > 50%
- < 50%
- bi-directional trail
- no data
Trail Last Used
Trailforks scans activity logs to determine the last time a trail was ridden.
- < 2 days
- < 1 week
- < 2 weeks
- < 1 month
- < 6 months
- > 6 months
Trail Ridden Direction
The intended direction a trail should be ridden.
- Downhill Only
- Downhill Primary
- Both Directions
- Uphill Primary
- Uphill Only
- One Direction
Contribute Details
Colors indicate trail is missing specified detail.
- Description
- Photos
- Description & Photos
- Videos
Trail Popularity ?
Trailforks scans activity logs to determine which trails are ridden the most in the last 9 months.
Trails are compared with nearby trails in the same city region with a possible 25 colour shades.
Think of this as a heatmap, more activities = more kinetic energy = warmer colors.
- most popular
- popular
- less popular
- not popular
ATV/ORV/OHV Filter
Max Vehicle Width
inches
US Cell Coverage
Legend
Radar Time
Activity Recordings
Trailforks uses anonymized public activity data.
?
Activity Recordings
Trailforks uses anonymized public activity data.
?
Winter Trails
Warning
A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
Missing Trails
Most Popular
Least Popular
Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
Heatmap of where users jump on trails. Zoom in to see individual jumps, click circles to view jump details.
BC Backroad Status
![map legend]()
Service Road Atlas is a free to use, community-driven service for viewing and creating reports on the numerous back-country service roads around B.C. and Alberta.
Slope Aspect
Direction the slope faces
Trails Deemphasized
Trails are shown in grey.
Only show trails with no bike usage.
Suggested Layers
Based on selected activity type
Save the current map location and zoom level as your default home location whenever this page is loaded.
Save
Directions to gem-slabs trailhead
(32.499210, -110.861620)
Photos
5 more »
Videos
2 more »
mtb
5:37 |
112 |
Sep 3, 2026 , Tucson
mtb
11:01 |
690 |
Mar 7, 2023 , Tucson
Routes with this trail
more »
★ 5.0 • 14 miles • 1,668 ft • 8 •
Similar to the V1 route, but takes Gem Slabs instead of Chutes. The bottom portion of Gem is similar to...
Coryhibbert
“Very steep in spots” accurate.
Fun addition to an already great technical trail
Fun addition to an already great technical trail
We hope you've been enjoying Trailforks!
Create a FREE account to view all trail reviews and much more.
Nearby Trails
- Gem 955 ft
- The Chutes Alt 1,480 ft
- Lion's Back Slab 1,558 ft
- Slab City 1,795 ft
- 50-year Slabs 2,119 ft
Catalina State Park / 50-Year
- By AK-Biking
& contributors - #609897 - 1,613 views
- Follow/Subscribe
- login to download gpx or kml files.
Hit the Trail
Download Trail
Save to wishlist, Garmin & download.
Find Related Routes
Find routes and users activities that include this trail.
You must enter a description before submitting.