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Routes
Road cycling routes
United States
Washington
King County
Black Diamond

Southeast Green Valley Road – Flaming Geyser Hill loop from Kentlake High School

Routes
Road cycling routes
United States
Washington
King County
Black Diamond

Southeast Green Valley Road – Flaming Geyser Hill loop from Kentlake High School

Moderate

3.3

(26)

27

riders

Southeast Green Valley Road – Flaming Geyser Hill loop from Kentlake High School

01:51

42.3km

310m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is right next to a parking lot.

Last updated: April 20, 2026

Waypoints

A

Start point

Parking

Get Directions

19.6 km

Porter Levee Natural Area

Nature Reserve

2

22.1 km

Southeast Green Valley Road

Highlight (Segment) • Cycleway

This normally pleasant road can get a little windy at times, but it's a nice rolling route to pedal on.

Tip by

3

32.2 km

Flaming Geyser Hill

Highlight (Segment) • Natural Monument

Nothing to worry about, with a couple of recovery spots where it's almost level. Comes off the flat farmland of Green Valley Road, so you get the best of both worlds.

Tip by

4

39.0 km

Black Diamond Bakery

Highlight • Cafe

Great spot to stop for coffee / pastry break, or full lunch if you need a bit more!

Tip by

B

42.3 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

34.9 km

4.91 km

2.00 km

531 m

Surfaces

37.3 km

4.81 km

242 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (210 m)

Lowest point (20 m)

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Weather

Powered by Foreca

Thursday 25 June

19°C

11°C

37 %

Additional weather tips

Max wind speed: 9.0 km/h

to get more detailed weather forecasts along your route

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Description

If you're looking for a rewarding road cycling escape that blends rural charm with a decent challenge, the Southeast Green Valley Road – Flaming Geyser Hill loop from Kentlake High School is definitely worth your time. This moderate 26.3-mile (42.3 km) route packs in 1014 feet (309 metres) of climbing over an estimated 1 hour and 50 minutes, making it a solid option for beginner to intermediate cyclists seeking a peaceful ride away from city traffic.

What to expect on Southeast Green Valley Road – Flaming Geyser Hill loop from Kentlake High School

Expect a diverse ride as you pedal along Green Valley Road, a twisting, rural two-lane stretch that meanders through active farms, fields, and lush hills. While you'll enjoy long flat sections, the route also features rolling terrain, building up to the main event: Flaming Geyser Hill. This consistently steep climb will test your legs, but the reward is a fun, twisty descent on the other side. The route passes by Flaming Geyser State Park, offering picturesque views of the Green River and a unique natural backdrop, making it ideal for cyclists who appreciate a mix of challenges and natural beauty.

Planning your visit

This loop is known for its very low car traffic, especially through the farmland sections, offering a more peaceful cycling experience. Flaming Geyser State Park, located along the route, provides a distinctive backdrop and can serve as a convenient rest stop with restrooms and water. While specific parking details for cyclists at Kentlake High School are not extensively documented, it's generally a good idea to check local school policies or consider alternative starting points with public parking nearby if you're concerned about visitor parking.

Trail details

  • Distance: 26.3 miles (42.3 km)
  • Elevation gain: 1014 feet (309 metres)
  • Difficulty: moderate
  • Estimated time: 1 hours and 50 minutes

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