Mason Valley is a
valley
A valley is an elongated low area often running between hills or mountains, which will typically contain a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams ove ...
in
San Diego County, California. Mason Valley was named after a settler, James E. Mason who established a
ranch
A ranch (from es, rancho/Mexican Spanish) is an area of land, including various structures, given primarily to ranching, the practice of raising grazing livestock such as cattle and sheep. It is a subtype of a farm. These terms are most ofte ...
in the valley in the later 19th century. The mouth of the valley is at an elevation of , at the point where the valley narrows into a canyon where the
Vallecito Wash continues as
Vallecito Creek and passes between the
Sawtooth Range and the
Vallecito Mountains
The Vallecito Mountains are located in the Colorado Desert, in eastern San Diego County, Southern California. They are about north of the U.S. border with Mexico.
Geography
The mountains lie in Anza-Borrego Desert State Park, in an east–west ...
. The head of Mason Valley is at an elevation of 2550 feet at at the junction of
Oriflamme Canyon and
Rodriguez Canyon where Vallecito Wash has its source.
References
Valleys of San Diego County, California
East County (San Diego County)
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