Topography

Santa Lucia Range high mountain slopes grading to foothills; 900 – 2200 feet.

Soil

Shallow, bedrock residual soils and patchy colluvial hillside soils from middle member of Monterey Formation and older rocks; largely calcareous soils.

Topography

Old erosional plateau at the base of the La Panza Range; alluvial terraces and fans of Huerhuero Creek; 1,000 – 2,000 feet.

Soil

Old, well developed terrace and hillside soils; mix of granitic and sedimentary rocks.

Topography

High, older terraces, fans, and hills; 740 – 1,600 feet

Soil

Quaternary alluvial soils, well developed loams to clay loams, some calcareous, with Monterey Formation sandstone and siltstone at depth in some areas.

Topography

Rolling plains of Estrella River valley and terraces; 745 – 1819 feet.

Soil

Quaternary alluvial soils of diverse ages across younger to older terraces, deep to moderate depth, with remnant patches of older valley fill at highest elevations.

Topography

Upfaulted hills through old river terraces along Huerhuero–La Panza fault; 740 – 1,300 feet.

Soil

Old alluvial terrace and residual hillside soils of moderate depth with cementation of the gravelly Paso Robles Formation and older granites.

Topography

Old Pliocene–Pleistocene erosional surface across the Simmler, Monterey and Paso Robles formations below the La Panza Range; 1,160 – 2,086 feet.

Soil

Deep, sometimes cemented alluvial soils; old leached alkaline soils common, with younger sandy soils along active steams.

Topography

High elevation mountainous bedrock slopes across a more erodible member of the Monterey Formation; 960 – 1,900 feet.

Soil

Mostly bedrock (residual) soils from the middle and lower members of the Monterey Formation, patches of alluvial soil along streams, largely calcareous, loams to clay loams.

Topography

San Juan Creek younger river valleys with alluvial terraces and fans as a tributary to the upper Estrella River; 980 – 1,600 feet.

Soil

Well to moderately drained, deep alluvial soils, sandy loams to loams to clay loams on the highest, oldest terraces.

Topography

Footslope of Santa Lucia Range, with alluvial terraces of the Salinas and Estrella rivers and small recent alluvial fans; 580 – 1,600 feet.

Soil

Deep, alluvial sandy loams to loams to a few clay loams (some with clay pans) from the river bottoms up onto the higher terraces.

Topography

High, steep mountain slopes of ancient Salinas River and upper reaches of incised contemporary Salinas River along the Rinconada Fault; 900 – 1,400 feet.

Soil

Deep alluvial soils derived from many lithologies and varying in texture, with patchy residual soils on mountain slopes.

Topography

Santa Lucia Range mountain slopes and broad alluvial terraces; elevations 700 – 1,800 feet.

Soil

Broad alluvial terraces and fans of Paso Robles Creek and the Salinas River over bedrock; alluvial soils of shallow to moderate depth and sandy to silty to clay loams; calcareous in places.

Topography

Soil