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Road cycling routes

Siskiyou County

Mumbo Summit – Castle Creek Road Climb loop from Mount Shasta

Road cycling routes

Siskiyou County

Mumbo Summit – Castle Creek Road Climb loop from Mount Shasta

Expert

8

riders

Mumbo Summit – Castle Creek Road Climb loop from Mount Shasta

05:28

84.0km

1,840m

Expert road ride. Very 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: August 13, 2025

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Waypoints

A

Start point

Parking

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1

22.5 km

Mumbo Summit

Highlight • Summit

Great views, be careful on the way down, lots of big potholes and loose gravel.

Tip by

2

35.9 km

Castle Creek Road Climb

Highlight (Segment) • Climb

Starting the Castle Creek Road climb you'll ascend into dramatic Northern California scenery, with incredible close-up views of Castle Crags' granite spires and often glimpses of majestic Mount Shasta. Be …

Tip by

B

84.0 km

End point

Parking

Way Types & Surfaces

Way Types

77.1 km

5.74 km

1.19 km

Surfaces

63.8 km

20.3 km

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Elevation

Elevation

Highest point (1,980 m)

Lowest point (610 m)

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Weather

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Saturday 1 November

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

Nearby routes

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.

Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.

More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.

Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.

Expert

8

Mumbo Summit – Castle Creek Road Climb loop from Mount Shasta

05:28h

84.0km

1,840m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.

Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.

More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.

Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.

Expert

13

Mumbo Summit loop from Mount Shasta

03:16h

50.8km

1,050m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.

Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.

More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.

Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.

Intermediate

5

Sisson Meadow loop from Mount Shasta

01:32h

29.9km

330m