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United States
California
Contra Costa County
Walnut Creek

Costanoan Trail & Twin Ponds loop — Shell Ridge Open Space

Routes
Hiking trails & Routes
United States
California
Contra Costa County
Walnut Creek

Costanoan Trail & Twin Ponds loop — Shell Ridge Open Space

Easy

Costanoan Trail & Twin Ponds loop — Shell Ridge Open Space

01:49

5.08km

160m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: June 8, 2024

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Waypoints

A

Start point

Parking

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1

919 m

Twin Ponds

The two side-by-side ponds are named Twin Ponds, offering a delightful spot to observe and enjoy the area's beautiful brown-blue contrast between the water and the grassy surroundings. During winter, the ponds reach their fullest capacity.

Tip by

2

4.09 km

Costanoan Trail

This trail offers a spacious and easy-to-follow path. From here, you'll be able to enjoy a stunning view of Mt. Diablo and the rolling hills in the area. Keep in …

Tip by

B

5.08 km

End point

Parking

Way Types & Surfaces

Way Types

3.22 km

1.24 km

620 m

Surfaces

1.81 km

1.68 km

1.02 km

453 m

120 m

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Elevation

Elevation

Highest point (220 m)

Lowest point (110 m)

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Weather

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Tuesday 21 October

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How to understand each route’s difficulty level

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Expert
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How to understand each route’s difficulty level

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Intermediate
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Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
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How to understand each route’s difficulty level

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Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
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Intermediate
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Expert
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Easy
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Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
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Expert
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How to understand each route’s difficulty level

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Easy
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How to understand each route’s difficulty level

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Mountain Bike

Road Bike

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Mountain Bike

Road Bike

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Easy
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Mountain Bike

Road Bike

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Easy
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Corresponds approx.to SAC 1.
Intermediate
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Expert
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Mountain Bike

Road Bike

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Easy
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How to understand each route’s difficulty level

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Bike

Mountain Bike

Road Bike

Running

Easy
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.
Intermediate
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Expert
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Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
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.
Intermediate
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.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
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Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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