Development Route

Note: This is a Development Route – it has not been fully vetted by the Dirty Freehub Team. The turn-by-turn directions have not been validated, the route has not been ridden in its entirety by a Dirty Freehub Team member, and the general documentation is less. Development Routes are an organic, community effort to develop ideas into highly curated, 5 Star Routes. Riding a Development Route requires a sense of adventure, self-sufficiency, and good navigational skills. We also ask that if you do ride a Development Route, contribute some knowledge back. See the right panel for how to get involved.

We think the northern part of the Willamette Valley is really under appreciated for the great gravel riding that it has. Most of the riding is west of Highway 47 and north of Highway 18. The terrain is rolling hills with farmlands and woodlands. As you head deeper west, you come into the Coast Mountains and timberlands.

There are few long sustained climbs, but the hills do come with pitch. Seeing your bike computer read out 8% or 10% incline is not uncommon. Overall, we have found the roads to be hard-packed. Sometimes smooth, sometimes with a layer of pea gravel over the top.

Expect some traffic on both the paved and gravel roads. This is just a fact of the route being at the urban-rural interface and Portland being a close, large metro area. Riding with a red blinky light is recommended.

This route, along with others detailed in the Details Tab, is from a local rider. We have worked the routes so that they seldom use the same roads, and if they do, we tried to use the road in the opposite direction.

Adventure / Gravel Route

Loop: 38 miles / 4100 ft gain
– Surface: unknown %gravel
eBike Friendly: yes
– Location: ~ Portland, OR
– Published: April 2021

Terrain & Technical Riding Difficulty[what this means]


When we like to ride this …

The Willamette Valley area rides most of the year. Winter can be wet, but spring is absolutely beautiful with the flowers, blooming trees, green fields and flowing creeks.

The Start

Ed Grenfell Park
Lat / Long: 45.227332, -123.274259


Black = unknown / undocumented surface type
Red = paved road
Brown = gravel / dirt road
Blue = single track
Purple = paved bike path / roubaix

For help with GPS files, the RideWithGPs mapping app and to learn how to download our routes for free, see the “Using Our Rides” page.

Ride Details

Food & Water


Ride Notes

40 mm tires are a good choice for the terrain. Some riders may be inclined to go narrower.

Recommend a red blinky light. We really like the the units that come with rear looking radar detector. It is really cool to know of cars approaching from behind you without turning around.

Some of the houses have fenced in dogs. We have not been chased in the area, but we recommend carrying some kind of dog repellent.

Other Ride Options

Other rides in the area to consider are:

From this collection of routes, you can build routes that are longer and more challenging, but you can also shorten routes to your liking. See our 20 Minutes series on “How to Modify Routes with RideWithGPS“.


Revision History

Get Involved!

This route is a work in progress – we need your help to make the route 5 Star. What can you do to help:

  • Tell us, does the route meet our 5 Star criteria?
  • Submit pictures.
  • Submit short videos (drone stuff is really cool!).
  • Submit route a description.
  • Tell us about “points of interest”.
  • Do you know of organizations that we should partner with that are actively involved in preserving lands for recreational uses?

You can leave us feedback in the comment tab or you can submit a detailed report using the Share Your Route form.

The best routes are those that are organic and driven by the riding community. Thus, get involved! And … ride dirty & smile!

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