Battery Spencer - Hike near Mill Valley, California
Conzelman Rd, Mill Valley, CA 94941, USA,Mill Valley,California
37.829607404976734, -122.48339116573334
6.3 miles SE of Mill Valley, California
Address: Conzelman Rd, Mill Valley, CA 94941, USA
GPS: 37°49'46.6"N 122°29'0.2"W
Maps | Directions
State: California

Restrooms Trails


This is easily one of the best places to view the Golden Gate Bridge. For over half a century, this was one of the most strategically important sites guarding the Golden Gate. Completed in 1897, the battery was named for Joseph Spencer, who had been a Major General in the army during the American Revolution. It was armed with 3 rifled guns having 12" diameter barrels. The fortification saw continuous service until 1943, when it was declared obsolete and its guns scrapped.

Distance: 0.2mi each way

37.3K Written by endovereric

Be courteous, informed, and prepared. Read trailhead guidelines, stay on the trail, and don't feed the wildlife.

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  1. Plan Ahead and Prepare
  2. Travel & camp on durable surfaces
  3. Dispose of waste properly
  4. Leave what you find
  5. Minimize campfire impacts
  6. Respect wildlife
  7. Be considerate of other visitors


From Mill Valley, California

  1. Head east on Sunnyside Ave toward Hill St (256 ft)
  2. Turn right at the 1st cross street onto Hill St (285 ft)
  3. Turn left at the 1st cross street onto E Blithedale Ave (1.6 mi)
  4. Merge onto US-101 S via the ramp to San Francisco (5.5 mi)
  5. Take exit 442 toward Sausalito (128 ft)
  6. Merge onto Alexander Ave (390 ft)
  7. Turn right onto Conzelman Rd
    Destination will be on the left
    (0.3 mi)
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Guest Review/Comments



10/11/16 5:47 pm 10/5/16
We found the battery by accident just looking for a place to park for the night. You can't ask for a better view of the bridge and bay and the battery itself is pretty cool. There's a fair amount of vandalism on the buildings and placards but still pretty interesting. There's a placard out by the viewpoint that has some information about the bridge as well.
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Battery Spencer Battery Spencer
View from parking lot View from parking lot Bathrooms Bathrooms Trail Trail Trail Trail Bench with beautiful view of the bay Bench with beautiful view of the bay North San Francisco Bay North San Francisco Bay San Francisco Bay San Francisco Bay View of Golden Gate Bridge View of Golden Gate Bridge View at night View at night Golden Gate Bridge - View from Battery Spencer Poi by Atka

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