07: Where can I drop off my mail-in ballot in person within San Juan County in Colorado?Source: https://sanjuancounty.colorado.gov/clerk1557 Greene St, Silverton, CO 81433 ← 07: Where can I drop off my mail-in ballot in person within Mineral County in Colorado? → 07: Where can I drop off my mail-in ballot in person within Fairfield County in Connecticut?