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23.5 miles
Distance
1,242 ft
Climb
-1,245 ft
Descent
806 ft
High Point
506 ft
Altitude min
556 ft
Altitude start
558 ft
Altitude end
-21.7%
Grade max
28.8%
Grade min
7 miles
Distance climb
6 miles
Distance down
10 miles
Distance flat
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Detailed Description
Diamond Loop is a 24 mile moderately popular intermediate route located near Maple Valley Washington. This mountain bike only route. This route includes 50 trails. This route climbs 1,242 ft with a max elevation of 806 ft then descends -1,245 ft.
Trail Issues on Route
- Closed: 1 trail (newest: Aug 10, 2026)
- Significant Issue / Amber: 2 trails (newest: Sep 16, 2025)
- Minor Issue / Yellow: 4 trails (newest: Aug 15, 2026)
Local Trail Association
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Trail Products
Stats
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Distance24 miles
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Altitude min506 ft
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Altitude start556 ft
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Altitude end558 ft
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Climb1,242 ft
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Descent-1,245 ft
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Grade max-21.7%
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Grade min28.8%
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Distance climb7 miles
-
Distance down6 miles
-
Distance flat10 miles
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Trails in Route
Details
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Riding area
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Primary ActivityMountain Bike
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Difficulty ratingBlue
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eBike Allowed
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Activity Logs
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Trail Conditions
- Unknown
- Snow Groomed
- Snow Packed
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- Snow Cover Partial
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
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Trail Flow (Ridden Direction)
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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.
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- Downhill Primary
- Both Directions
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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.
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Activity Recordings
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Activity Recordings
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Winter Trails
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Missing Trails
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Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
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BC Backroad Status
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Slope Aspect
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Recent Trail Reports Along Route
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- By beccabook
& contributors - #19614 - 2,362 views
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