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3.3 miles
Distance
1,065 ft
Climb
-81 ft
Descent
00:51:34
Avg time
984 ft
Altitude change
1,500 ft
Altitude min
2,503 ft
Altitude max
1,500 ft
Altitude start
2,484 ft
Altitude end
5.7%
Grade
-10%
Grade max
36.8%
Grade min
3 miles
Distance climb
1,972 ft
Distance down
1,148 ft
Distance flat
00:51:34
Avg time
Preston RR Grade Details
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Activities
- Mountain Bike
- Hike
- Trail Running
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Riding AreaTiger Mountain State Forest
Issaquah, Washington -
Difficulty Rating
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Voted DifficultyBlue (1 vote)
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Local Popularity60 in Mountain Biking [+]
- 60 in Trail Running
- 5 in Hiking
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Global Ranking
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Trail TypeSingletrack
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Bike TypeAM, XC
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DirectionBoth DirectionsPopular Direction Shown
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Climb DifficultyBlue
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Physical RatingModerate
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SeasonYear- round now but may be seasonally closed.
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Dogs AllowedYes
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eBike Allowed
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Ride in RainYes
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Land OwnerWashington State DNR
This old standard is getting neglected with all the new trails on Tiger. It's still a great trail though (in either direction). Significant work has been done in recent years to redirect the formerly massive "Preston River" water flow off the trail, and thus it can now be open year round. There are springs everywhere on this trail though, so give it a rest during rain, and expect some wet immediately after a rain. It's still fun to bomb down this trail, and it's a better descent for newer riders than Off The Grid.
Local Trail Association
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-
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
- 7 rides
- 15 miles average
6 Months
- 74 rides
- 16 miles avg distance
All
- 875 rides
- Last: Jul 19, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Preston RR Grade Trail Reports
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Trail Conditions
- Unknown
- Snow Groomed
- Snow Packed
- Snow Covered
- Snow Cover Partial
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
- Dry
- Very Dry
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The colour categories are based on what percentage of riders are riding a trail in its intended direction.
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- > 6 months
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- Downhill Primary
- Both Directions
- Uphill Primary
- Uphill Only
- One Direction
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Directions to preston-rr-grade trailhead
(47.498710, -121.927600)
Photos
40 more »
Videos
7 more »
youtuber
![CDC Enduro 2017 | Tiger Mountain | Stage 3 |...]()
15:49 |
1012 |
May 14, 2017 , Issaquah
3:13 |
299 |
Mar 2, 2023 , Issaquah
24:23 |
1635 |
Aug 26, 2019 , Issaquah
6:07 |
899 |
Jan 6, 2015 , Issaquah
Routes with this trail
★ 3.9 • 13 miles • 2,407 ft • 16 • Loop •
This is a great blue-level loop up to the summit and back for the intermediate rider who's not quite ready...
★ 4.0 • 13 miles • 2,328 ft • 7 • Loop •
Back in the day, we only had , and . The old classic loop would have been to climb Main Tiger, descend and...
★ 5.0 • 48 miles • 10,456 ft • 33 • Loop •
A route that connects all the trails on Tiger (as of May 2026) with great flow, limited repeats, and zero...
Trail Products
7 Reviews & Comments
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Nearby Trails
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- Tiger Crossover Rd 5500 896 ft
- Old Skidder Access Road 902 ft
- Bail Out 3,904 ft
Tiger Mountain State Forest
- By jebike
& contributors - #17242 - 14,918 views
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Frequently Asked Questions About Preston RR Grade
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Where is Preston RR Grade located?
Preston RR Grade is located in Tiger Mountain State Forest, Issaquah, Washington, United States. It is part of the Tiger Mountain State Forest trail network. The trailhead is located at coordinates 47.49871, -121.9276.
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How hard is Preston RR Grade?
Preston RR Grade is rated as Blue difficulty. The physical rating is Moderate. The average grade is 5.7%. The climb difficulty is rated Blue.
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What is the elevation gain for Preston RR Grade?
Preston RR Grade has 1,065 ft of elevation gain. The trail has 81 ft of elevation descent. The elevation ranges from 1,500 ft to 2,503 ft.
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Is Preston RR Grade a point to point trail?
Preston RR Grade is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
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