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Routes
Running trails & routes
United States
California
San Diego County

Sweetwater Reservoir loop

Moderate

4.9

(1346)

19,815

runners

Sweetwater Reservoir loop

01:11

9.63km

140m

Running

Jog the 6.0-mile Sweetwater Reservoir loop in San Diego National Wildlife Refuge, a moderate route with scenic lake views and diverse wildli

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

San Diego National Wildlife Refuge

Waypoints

A

Start point

Parking

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1

611 m

Sweetwater Reservoir

Highlight • Lake

Sweetwater Reservoir is a man-made lake created by the Sweetwater Dam in 1888. It is a popular location for hiking and you can enjoy awesome scenery and wildlife in the surrounding trails.

Tip by

2

2.23 km

The trails bordering Sweetwater Reservoir are mostly smooth dirt paths. Most of the intersections are marked, but the lesser used trails get overgrown at times. As you run closer to …

Tip by

3

5.13 km

This small hut is a great shaded spot to stop and admire a viewpoint of the south end of the Sweetwater Reservoir.

Tip by

B

9.63 km

End point

Parking

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Way Types & Surfaces

Way Types

8.77 km

824 m

< 100 m

Surfaces

8.76 km

401 m

392 m

< 100 m

< 100 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 (160 m)

Lowest point (80 m)

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Weather

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Sunday 24 May

22°C

16°C

-- %

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to access the Sweetwater Reservoir loop?

Access points often include parking and restrooms at main entrances to the trail system. It's advisable to check specific signage at various trailheads for current parking availability.

Is the Sweetwater Reservoir loop dog-friendly?

Generally, the trail is considered dog-friendly, allowing leashed dogs. However, some newly opened sections or specific areas might have restrictions. Always check local signage for the most current regulations regarding dogs.

What is the best time of year to jog this route?

The trail offers scenic views year-round. Depending on the season, you might see wildflowers. For comfortable jogging, consider visiting during cooler months or early mornings/late afternoons in warmer seasons. The area is known for providing a surprising amount of quiet solitude.

Are there any permits or entrance fees required to access the trail?

The Sweetwater Reservoir loop is located within the San Diego National Wildlife Refuge. While the refuge actively protects sensitive habitats, there are typically no specific permits or entrance fees required for general access to the trails themselves.

What is the terrain like on the Sweetwater Reservoir loop?

The trail primarily features well-worn dirt paths, with some sections also including paved and gravel surfaces. You'll encounter a mix of riparian areas along the Sweetwater River and coastal scrub habitats. There may be small, dramatic rises and occasional rocky ascents, particularly on hills.

What kind of wildlife and scenery can I expect to see?

The route offers awesome scenery and wildlife, with scenic views of the lake. You might spot coyotes, rabbits, roadrunners, and hawks. The refuge is also home to endangered species like the least Bell's vireo and California gnatcatcher. The landscape transitions from open dry brush to areas shaded by leafy oak trees.

Are there any notable viewpoints or landmarks along the route?

Yes, the route offers several scenic spots. You'll have views of the Sweetwater Reservoir itself, and there's a specific Gazebo With View of Sweetwater Reservoir. The trail system itself, known as the Sweetwater Reservoir trail system, is a highlight.

Is the full loop around Sweetwater Reservoir complete?

The full loop around the entire reservoir is a project in progress. While segments of the trail exist, there is continuous work on the design and construction of new sections to connect existing trails.

Does the trail intersect other well-known paths?

Yes, the route also passes through sections of the Sweetwater Access Road, Sweetwater Park Trail -- SD Aqueduct Service Road, and Sweetwater Park Trail.

Is this trail suitable for beginners?

While some portions are rated 'Easy,' other descriptions classify routes in the area as 'moderate,' requiring 'good fitness.' Shorter, more easily accessible paths are available, making it suitable for various skill levels depending on the specific route chosen. The jogging route described is considered moderate.

Are there restrooms or other facilities available along the trail?

Yes, access to the trail system often includes amenities such as parking and restrooms at main entrances. It's always a good idea to check for specific facility locations before heading out.

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