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Mallard Slough Trail Hike Information

This trail takes you through fantastic bay habitat, an oasis for millions of migratory birds and endangered species. It also boasts views of the surrounding mountains.

Watch for:

Waterfowl, shorebirds, wading birds, and raptors can all be found in this area. The best times for birding are during the spring and fall migrations.

Hiking Details for the Mallard Slough Trail

Distances: 3.3 miles round trip

Elevation change: N/A

Hiking time: 2 hours

Trail surface: Gravel

Best Season: All year

Managing agency: U.S. Fish and Wildlife Service

Parking lot location: Click here for directions

Overview: Part of the Alviso area, located within the Don Edwards San Francisco Bay National Wildlife Refuge, the Mallard Slough Trail is a nice loop from the Environmental Education Center which takes you through the bay’s marsh habitat, where you can see a variety of wildlife, including the endangered California clapper rail and the salt marsh harvest mouse.

Directions to the Mallard Slough Trail Hike

From Highway 101, take 237 East to North 1st Street in San Jose. Take exit 7 from 237 East. Continue on North 1st St. Take Disk Dr. to Grand Blvd to the parking lot.

More About the Don Edwards San Francisco Bay National Wildlife Refuge

The Alviso Marina County Park is part of the Don Edwards San Francisco Bay National Wildlife Refuge – 30,000-acre refuge for millions of migratory birds and endangered species. Created in 1972, the refuge was an attempt by the San Francisco Bay community to protect the local ecosystem from changes that had been occurring ever since the gold rush in 1849 brought a population boom and major growth and development to the area surrounding the bay. Much of the wetlands have been converted over time to support development which has continued to this day, and now nearly 85% of the bay’s original marshes and shorelines have been altered.

In Alviso, you can find a variety of the Bay’s habitats including salt marshes, salt ponds, uplands, and a freshwater tidal slough, with numerous trails to get out into the wetlands and explore.

 

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