Here's a breakdown of what that means:
* Alluvial soils: These are formed from sediments deposited by rivers, streams, and other bodies of water. They tend to be fertile and well-drained, but can vary in texture and composition depending on the source of the sediment.
Specific soil types in Rancho Cucamonga:
* Mohave soils: These are found in the foothills and higher elevations, characterized by their sandy texture and low water-holding capacity.
* Yolo soils: These are found in the valley floor and are more fertile, with a loamier texture and better water retention.
* San Joaquin soils: Similar to Yolo soils, they are found in the valley floor and are fertile with good drainage.
Important Note: The specific soil type can vary depending on the exact location within Rancho Cucamonga. If you need information about a particular property or area, you can consult with a local soil scientist or use online resources like the USDA's Web Soil Survey.