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San Antonio Creek (Santa Clara County) facts for kids

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San Antonio Creek
Country United States
State California
Region Santa Clara County
City San Antonio Valley, California
Physical characteristics
Main source Southwest slopes of Mount Stakes in the Diablo Range
3,177 ft (968 m)
37°18′36″N 121°24′54″W / 37.31000°N 121.41500°W / 37.31000; -121.41500
River mouth Confluence with Arroyo Bayo to form source of Arroyo Valle
1,808 ft (551 m)
37°23′08″N 121°34′21″W / 37.38556°N 121.57250°W / 37.38556; -121.57250
Basin features
Tributaries
  • Left:
    Jumpoff Creek
  • Right:
    Beauregard Creek, Long Gulch

San Antonio Creek is a stream in California, United States. It flows about 24.4 kilometers (15 miles) long. This creek starts in Santa Clara County. It is located near the border with Stanislaus County.

History of San Antonio Creek

Early Names for the Area

On April 5, 1776, a group of explorers came through this area. It was the de Anza Expedition. They named the area El Cañada de San Vicente. This means "The Canyon of San Vicente."

How the Name Changed

Later maps showed different names for the creek. A 1956 map called it San Antone. This is how many local people still say the name. The 1924 U.S. Geological Survey map also used the spelling San Antone.

Where San Antonio Creek Flows

The Creek's Journey

San Antonio Creek begins high up on Mount Stakes. It starts at about 3,177 feet (968 meters) above sea level. From there, it flows down into the San Antonio Valley.

Joining Other Streams

As it flows, other smaller streams join San Antonio Creek. These are called tributaries.

  • Beauregard Creek joins from the right side.
  • Jumpoff Creek joins from the left side.
  • Long Gulch also joins from the right side.

Eventually, San Antonio Creek meets another stream called Arroyo Bayo. When they meet, they form a new stream called Arroyo Valle. Arroyo Valle then flows into Lake Del Valle. After the lake, it joins Arroyo de la Laguna, which then flows into Alameda Creek. Finally, Alameda Creek empties into the San Francisco Bay.

When the Creeks Flow

San Antonio Creek and Beauregard Creek do not always have water. They are called ephemeral streams. This means they only flow after it rains a lot.

Wildlife and Nature in the Area

San Antonio Valley Ecological Reserve

The area around the creek is home to a special place. It is called the San Antonio Valley Ecological Reserve. This nature preserve is very large, covering 3,282 acres. A group called the Nature Conservancy helped create it. They bought the land from a local rancher.

Animals You Might See

This reserve is famous for its herd of tule elk. Tule elk are a type of deer. They are native to California. You might also wonder about fish in the creek. There is no old evidence that steelhead trout lived in San Antonio Creek. However, Arroyo Valle, which is formed by San Antonio Creek, used to have many fish.

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