Located on I-70 just 35 minutes west of Denver in Idaho Springs, Colorado

Construction of the Argo Tunnel began in 1893. It would be 17 years before it would reach Central City , over 4.5 miles away. The tunnel would provide water drainage, ventilation and economical transportation of the gold bearing ore from the many mines it would intersect along the way.

The Argo Mill was constructed to process the gold bearing ore from these mines. When completed, the Argo would be the largest mill of its type in the world. The mill processed over 100 million dollars of gold ore.  At that time, gold prices were $18.00 to $25.00 per ounce.   Taking into account the difference in gold values between 1900 and 2017, nearly 3 Trillion dollars worth of gold ore came through the ARGO TUNNEL.

For the first time in 75 years, the front portal of the ARGO TUNNEL is open to visitor traffic!

The Argo Mill, Tunnel and Museum tour is a premier heritage tourism site.  Read about us on TripAdvisor!

Idaho Springs Gold Mill Tour

Click on the Clear Creek 365 link below for other great adventures in the area:

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White Water Rafting
Mineral Hot Springs
Great Trout Fishing
Horse back riding
& Much More!

HOURS OF OPERATION:

CLOSED UNTIL MAY 1st

“We are sorry to announce the ARGO MILL and TUNNEL is now closed for all tour operations until May 1st, 2020 and we may extend our closure depending on CDC and Presidential Administration guidelines. We are sorry for the inconvenience and hope to be open as soon as possible.”

NO PETS ON ARGO PROPERTY.
ALL SERVICE DOGS MUST BE REGISTERED.  

Admission Rates

Adults $23.00
Children (5-10) $16.00
*Under Age 4 Free

*We do not accept daycare/summer groups.