California State Route 121 (CA 121) is a north-south state highway in California in American Truck Simulator that was added in the 1.44 California rework.
In real life, CA 121 goes from CA 37 to CA 128.
Scenery towns[]
Route description[]
CA 121 starts at CA 37 and goes north into Napa Valley. It goes through the town of Big Bend where it intersects with CA 116. It continues going north for a little bit before becoming inaccessible.
Junction list[]
| Location | mi | km | Destination | Facilities | Notes |
|---|---|---|---|---|---|
| 0 | 0 |  CA 37 - Novato, Vallejo
|
Southern terminus | ||
| Big Bend | TBA | TBA |  CA 116 West - Petaluma
|
Inaccessible |
