Ingram Creek, originally Arroyo de la Suerte, is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data
The National Map
, accessed March 11, 2011

tributary A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they ...

of the

San Joaquin River The San Joaquin River ( ; ) is the longest river of Central California. The long river starts in the high Sierra Nevada and flows through the rich agricultural region of the northern San Joaquin Valley before reaching Suisun Bay, San Francis ...

Stanislaus County Stanislaus County ( ; ) is a county located in the San Joaquin Valley of the U.S. state of California. As of 2023, its estimated population is 564,404. The county seat is Modesto. Stanislaus County makes up the Modesto metropolitan statistic ...

, in the

San Joaquin Valley The San Joaquin Valley ( ; Spanish language in California, Spanish: ''Valle de San Joaquín'') is the southern half of California's Central Valley (California), Central Valley. Famed as a major breadbasket, the San Joaquin Valley is an importa ...

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

. The mouth of Ingram Creek is located at at an elevation of where it has its confluence with a

slough Slough () is a town in Berkshire, England, in the Thames Valley, west of central London and north-east of Reading, at the intersection of the M4, M40 and M25 motorways. It is part of the historic county of Buckinghamshire. In 2021, the ...

of the San Joaquin River. The upper reach of the creek runs through Ingram Canyon. The source of Ingram Creek is located at the head of Ingram Canyon at the confluence of the source of Ingram Creek is located at the confluence of Grummett Creek and Cedar Spring Gulch at at an elevation of . Its

headwaters The headwater of a river or stream is the geographical point of its beginning, specifically where surface runoff water begins to accumulate into a flowing channel of water. A river or stream into which one or many tributary rivers or streams flo ...

are in the

Diablo Range The Diablo Range is a mountain range in the California Coast Ranges subdivision of the Pacific Coast Ranges in northern California, United States. It stretches from the eastern San Francisco Bay Area at its northern end to the Salinas Valley a ...

. It is a western

of the

Geology

Ingram Creek eroded from the following formations; the

Franciscan Assemblage The Franciscan Complex or Franciscan Assemblage is a geologic term for a late Mesozoic terrane of heterogeneous rocks found throughout the California Coast Ranges, and particularly on the San Francisco Peninsula. It was named by geologist A ...

Mesozoic The Mesozoic Era is the Era (geology), era of Earth's Geologic time scale, geological history, lasting from about , comprising the Triassic, Jurassic and Cretaceous Period (geology), Periods. It is characterized by the dominance of archosaurian r ...

ultrabasic Ultramafic rocks (also referred to as ultrabasic rocks, although the terms are not wholly equivalent) are igneous and meta-igneous rocks with a very low silica content (less than 45%), generally >18% MgO, high FeO, low potassium, and are usual ...

intrusive rocks, and

marine sediments Marine sediment, or ocean sediment, or seafloor sediment, are deposits of insoluble particles that have accumulated on the seafloor. These particles either have their origins in soil and rocks and have been transported from the land to the sea ...

Upper Cretaceous The Late Cretaceous (100.5–66 Ma) is the more recent of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''cret ...

Paleocene The Paleocene ( ), or Palaeocene, is a geological epoch (geology), epoch that lasted from about 66 to 56 mya (unit), million years ago (mya). It is the first epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), ...

and

Eocene The Eocene ( ) is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes ...

age.C. Michael Hogan, Marc Papineau, Ballard George, et al., ''Environmental Assessment for the Proposed Residential and Commercial Development at the Westley Interchange'', Earth Metrics Inc., Report 10529C, California State Environmental Clearinghouse, Sacramento, Ca., July, 1990 Marine sediments have been leached by groundwater, causing an elevated concentration of brine in the groundwater at depths of approximately 600 feet.

References

Rivers of Stanislaus County, California Tributaries of the San Joaquin River Diablo Range Geography of the San Joaquin Valley Rivers of Northern California {{California-river-stub

Geology

See also

References