- Adams County Colorado
Adams County Colorado Strasburg The Gravel and bench deposits along Clear Creek, just north of Denver contains placer gold. All bars, and benches along Clear Creek, which is a tributary of the South Platte River, had extensive placer oper …
- Alamosa County Colorado
Alamosa County Colorado Blanca West Blanca, elevation 12,000 feet has many area mines with dumps that has gold on them.
- Arapahoe County Colorado
Arapahoe County ColoradoAlong the South Platte River all gravel bars contain placer gold. Also along Cherry Creek, Dry Creek and Cottonwood Creek in T5S R66W and R67W had many productive placer workings. All regional tributary gravels contain placer go …