Argo Mill & Tunnel

The Argo Mill & Tunnel is a massive, five-level gold-processing mill clinging to the Idaho Springs hillside — a genuine relic of Colorado's gold rush era, where guided tours lead you to the entrance of the 4.5-mile Argo Tunnel that once drained and connected mines all the way to Central City. Every ticket includes a hands-on gold panning session, making the history tangible rather than just displayed behind glass.

The move: Take the guided 75-minute mill and tunnel tour together, competing at the gold panning station afterward to see who can pull the most color from the sluice — then walk up to the Mighty Argo Cable Car for sweeping views of the canyon before grabbing a beer at one of the historic mining-town bars along Miner Street in Idaho Springs.

📍 Idaho Springs
💸 $
⚡ Up for anything
🌗 Indoors

Where: 2350 Riverside Dr, Idaho Springs, CO 80452

Hours: Mined 2026-06-07 — confirm current hours before you go.

#gold-mine #tunnel-tour #industrial-ruin #gold-panning

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Proof: source 1 · source 2 · source 3

Verified 2026-06-07.