| Business | Phone |
| Phillip T Nicholls 22107 Shake Ridge Rd, Volcano 95689 | (209) 296-7977 |
| michael mason architect 19660 shake ridge road, Volcano 95689 | (530) 386-1043 |
| michael mason architect 19660 shake ridge road, Volcano 95689 | (530) 386-1043 |
| michael mason architect 19660 shake ridge road, Volcano 95689 | (209) 296-6257 |