Hammer Island
Hammer Island is a small island in the Sacramento–San Joaquin River Delta, in Contra Costa County, California, originally named Santos Island, it was changed to Hammer Island after Hans Hammer purchased the island from Mr.Places of Interest
Highlights include Clifton Court Forebay and C.W. Bill Jones Pumping Plant.
Clifton Court Forebay
Reservoir
Clifton Court Forebay is a reservoir in the San Joaquin River Delta region of eastern Contra Costa County, California, 17 mi southwest of Stockton. The estuary region the forebay is located in is only 1m to 3m above mean sea level. Clifton Court Forebay is situated 2 miles northwest of Hammer Island.
C.W. Bill Jones Pumping Plant
Waterworks
The C.W. Bill Jones Pumping Plant located 9 miles northwest of Tracy, California, was constructed between 1947 and 1951, and is a key component of the Central Valley Project. C.W. Bill Jones Pumping Plant is situated 2 miles southwest of Hammer Island.
John E. Skinner Delta Fish Protective Facility
The John E. Skinner Delta Fish Protective Facility or the Skinner Fish Facility is a fish collection and diversion facility located 2 miles upstream from the Banks Pumping Plant. John E. Skinner Delta Fish Protective Facility is situated 2 miles west of Hammer Island.Places in the Area
Nearby places include Mountain House and Mountain House.
Mountain House
Town
Photo: Tranistrider1979, CC BY-SA 3.0.
Mountain House is a city on the western edge of San Joaquin County, California, United States, lying just east of the historical waystop Mountain House in Alameda County. Mountain House is situated 2½ miles south of Hammer Island.
Mountain House
Hamlet
Mountain House was a historic waystop for forty-niners halfway from San Francisco to the Sierra Nevada gold country. The unincorporated community is in Alameda County, California, United States. Mountain House is situated 4½ miles south of Hammer Island.
Byron
Locality
Photo: Captndelta, CC BY-SA 3.0.
Byron is a census designated place in Contra Costa County, California, United States. As of the 2020 census, Byron had a population of 1,140. Byron is situated 6 miles northwest of Hammer Island.
Hammer Island
- Type: Islet
- Description: island in the United States of America
- Categories: island, locality, and landform
- Location: Contra Costa, California, United States, North America
- View on OpenStreetMap
Latitude
37.81596° or 37° 48′ 57″ northLongitude
-121.55757° or 121° 33′ 27″ westElevation
3 feet (1 metre)Open location code
849WRC8R+9XOpenStreetMap ID
way 172591016OpenStreetMap feature
place=islet
This page is based on OpenStreetMap, GeoNames, Wikidata, Wikimedia Commons, and Wikipedia.
We’d love your help improving our open data sources. Thank you for contributing.
Satellite Map
Discover Hammer Island from above in high-definition satellite imagery.
In Other Languages
“Hammer Island” goes by many names.
- Cebuano: “Hammer Island (pulo sa Estados Unidos, California)”
- Cebuano: “Hammer Island”
Places with the Same Name
Discover other places named “Hammer Island”.
Localities in the Area
Explore places such as Questa and Altamont.
Notable Places Nearby
Highlights include Questa Park and Coney Island.
California: Must-Visit Destinations
Delve into San Francisco, Los Angeles, San Diego, and Sacramento.
Curious Places to Discover
Uncover intriguing places from every corner of the globe.