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Grass Valley Reservoir – New Castle loop from Harvey Gap State Park

Grass Valley Reservoir – New Castle loop from Harvey Gap State Park

Moderate

3.5

(5)

riders

Grass Valley Reservoir – New Castle loop from Harvey Gap State Park

01:39

35.2km

410m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Last updated: April 20, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Colorado River Valley Field Office

Harvey Gap State Park

Waypoints

Start point

Get Directions

768 m

Grass Valley Reservoir

Highlight • Lake

Grass Valley Reservoir, located in Harvey Gap State Park, is a scenic lake set amid the Rocky Mountains.

Tip by

15.7 km

New Castle

Highlight • Settlement

New Castle is just west of Glenwood Springs at 5,597 feet in elevation. The historic downtown area, with local restaurants and shops, is perfect for exploring on foot or bike.

Tip by

35.2 km

End point

Way Types & Surfaces

Way Types

32.1 km

2.80 km

335 m

Surfaces

34.9 km

335 m

Elevation

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

Highest point (1,960 m)

Lowest point (1,690 m)

Weather

Today

Sunday 24 May

25°C

6°C

43 %

Additional weather tips

Max wind speed: 13.0 km/h

to get more detailed weather forecasts along your route

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

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Grass Valley Reservoir – New Castle loop from Harvey Gap State Park

01:39h

35.2km

410m

Moderate

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Grass Valley Reservoir – New Castle loop from Harvey Gap State Park

Grass Valley Reservoir

New Castle

Nearby routes

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