Describe the San Joaquin valley in California

From the text:

Flat and spacious, it spread out like a blanket of patchwork fields. Esperanza could see no end to the plots of yellow, brown, and shades of green. The road finally leveled out on the valley floor, and she gazed back at the mountains from where they'd come. They looked like monstrous lions' paws resting at the edge of the ridge.

This was not a gently rolling landscape like Aguascalientes. For as far as the eye could travel, the land was unbroken by even a hillock. Esperanza felt dizzy looking at the repeated straight rows of grapes and had to turn her head away.

The valley was huge and flat and its climate volatile. Hot summers, wet winters, and unexpected dust storms.

When Esperanza was high above the San Joaquin Valley she saw,mountains,straight rows of grapes,and a flat,spacious,yellow,brown,shades of green,valley.

Describe the San Joaquin Valley: