Looking back at the bridge over the Petaluma river into Sonoma County.
The bridge has a narrow shoulder, which is riddled with potholes on
the downhill section.
Looking back at Hwy 37 across Sonoma County. This picture was taken
near the Napa county line. You can see the bridge over the Petaluma
River and the Marin coastal mountains in the distance.
The hills adjacent to Hwy 37. Sears Point Raceway is on the other
side of these hills.
A dragster on a trailer, parked on the side of highway 121 near
Sears Point Raceway.
After miles and miles of agricultural fields, these rock formations
reminded me of the term "rock garden". :-)
Climbing up the hills that separate Sonoma and Napa Counties, the
hills began to become covered with vineyards. Here's a view looking
southwest, towards Mt. Tamalpais.