geo.wikisort.org - River

Kellogg Creek is a tributary of Indian Slough, in Contra Costa County, California. Indian Slough itself is a tributary of the Old River, an old channel of the San Joaquin River.[1] Kellogg Creek was formerly named Arroyo Santa Ángela de Fulgino by Pedro Font, on April 4, 1776, as the expedition of Juan Bautista de Anza passed through the area.[2]^: 1 In the 19th century it was known to the Californios as Arroyo del Sur.[2]^: 399

The mouth of Kellogg Creek lies at an elevation of 7 feet / 2 meters at its confluence with Indian Slough in Contra Costa County. Its source is located at 37°47′23″N 121°42′51″W at the head of a canyon in the hills north of Brushy Peak, in the Diablo Range in Alameda County, California. It arises at an elevation of 1,162 feet / 354 meters.[3]

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