Answer:
The main soil resources of California, the San Joaquin Soil is mostly found in the Californian Central Valley.
Step-by-step explanation:
The state soil and the main soil resource of California is the San Joaquin Soil. It has been considered as the state soil of California in the year 1997. The major soil resources are found mostly in the Central Valley of this state.
This valley is enriched with the fertile soil and highest growing land of corps. It is the most important region of agriculture in the state.