| Jfv (Franciscan Complex volcanic rocks) |
| Jsp (Green Valley complex serpentinite) |
| KJfc (Franciscan Complex chert) |
| KJfm (Franciscan Complex metamorphic rocks) |
| KJs (Great Valley complex sedimentary rocks) |
| Kfs (Franciscan Complex sedimentary rocks) |
| Ks (Great Valley complex sedimentary rocks) |
| QTv (Volcanic rocks) |
| Qha (Alluvium) |
| Qhy (Alluvium) |
| Qhym (Mud deposits) |
| Qoa (Alluvium) |
| Qsl (Hillslope Deposits) |
| Tms (Sedimentary rocks) |
| Tmv (Volcanic rocks) |
| Tpms (Sedimentary rocks) |
| Tpmv (Volcanic rocks) |
| af (Artificial Fill) |
| fsr (Franciscan Complex melange) |
