07: Where can I drop off my mail-in ballot in person within Lake County in Colorado?Source: http://www.lakecountyco.com/elections/Lake County Courthouse, 505 Harrison Avenue, Leadville, Colorado 80461 ← 07: Where can I drop off my mail-in ballot in person within Denver County in Colorado? → 07: Where can I drop off my mail-in ballot in person within Moffat County in Colorado?