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Extracted from:
Soil Map
Oceanside Area
CaliforniaU.S. Department of Agriculture
Bureau of Chemistry and SoilsUniversity of California
Agricultural Experiment StationBase Map in part from
U.S. Geological Survey SheetsField Operations
Bureau of Chemistry and Soils
1929 Note: For a larger map and more information, please see the 1929 Soil Map of the Lake Hodges area.
The Altamont series consists of deep, well drained soils that formed in material weathered from fine-grained sandstone and shale. These soils are on gently sloping to very steep uplands.
Typically, Escondido soils have dark brown slightly acid very fine sandy loam A horizons and neutral very fine sandy loam B2 horizons over hard metamorphic bedrock at depths of about 29 inches.
The Fallbrook series consists of deep, well drained soils that formed in material weathered from granitic rocks. Fallbrook soils are on rolling hills and have slopes of 5 to 75 percent.
The Greenfield series consists of deep, well drained soils that formed in moderately coarse and coarse textured alluvium derived from granitic and mixed rock sources. Greenfield soils are on alluvial fans and terraces and have slopes of 0 to 30 percent.
Merriam Sandy Loam appears related to the Modesto series. If you have other information related to this, please let us know. The Modesto series consists of moderately well drained, (medial) Noncalcic Brown soils developed from alluvium derived largely from granitic rock sources but with some mixture from metamorphic rocks. They occur on nearly level alluvial fans in areas where the surface drainage is very slow. These soils are reported to have had a mound type of microrelief, but this has been almost completely destroyed by leveling. The soils are formed on rather gritty, sandy loam or loam textured alluvium underlain in many places by a silty substratum like that underlying the Dinuba and Hanford soils. The Modesto soils characteristically have neutral, grayish brown or dark grayish brown surface layers of loams and clay loams which become puddled and dense when cultivated in the moist condition. They have blocky to prismatic light clay or sandy clay B2 horizons which are mildly basic and intermittently calcareous in the lower part. The underlying material may be sandy alluvium or unrelated silty substrata, occasionally cemented with lime to form thin, weak hardpans.
Please see Merriam Sandy Loam above.
The Ramona series is a member of the fine-loamy, mixed, thermic family of Typic Haploxeralfs. Typically, Ramona soils have brown, slightly and medium acid, sandy loam and fine sandy loam A horizons, reddish brown and yellowish red, slightly acid, sandy clay loam B2t horizons, and strong brown, neutral, fine sandy loam C horizons.
Rough Stony Land is an old name - the new name for this is "Rough Broken Land". Rough broken land (RuG) is made up of well-drained to excessively drained, steep and very steep land dissected by many narrow V-shaped valleys and sharp tortuous divides. Areas of exposed raw sediments are common, and there are a few areas of very shallow soils. Runoff is rapid to very rapid, and erosion is very high. The vegetation is a sparse cover of low woody shrubs. Note that none of the recent units around Lake Hodges is Rough Broken Land (or Rough Stony Land).
The Salinas series consists of deep, well drained soils that formed in alluvium weathered from sandstone and shale. Salinas soils re on alluvial plains, fans, and terraces and have slopes of 0 to 9 percent.
San Marcos Fine Sandy Loam is an old name - if you have more info on this as used in the Lake Hodges area, please let us know.
The Tujunga series consists of very deep, somewhat excessively drained soils formed in alluvium weathered mostly from granitic sources. Tujunga soils are on alluvial fans and flood plains and have slopes of 0 to 9 percent.
The Vista series consists of moderately deep, well drained soils that formed in material weathered from decomposed granitic rocks. Vista soils are on hills and mountainous uplands and have slopes of 2 to 75 percent.
Note: For a larger map and more information, please see the 1929 Soil Map of the Lake Hodges area.
