Image: ArgoTunnel1910
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ArgoTunnel1910.jpg (554 × 350 pixels, file size: 204 KB, MIME type: image/jpeg)
Description: Argo Tunnel portal near Idaho Springs, Colorado.
Title: ArgoTunnel1910
Credit: Colorado State Archives Postcard Collection
Author: Unknown authorUnknown author
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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