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Continue to ChatDeep Tunnel (historical) Map - Colfax County, NM https://www.yellowmaps.com/usgs/topo.cfm?map=nm-901895-deep-tunnel-%28historical%29
Deep Tunnel (historical) Map - Colfax County, NM https://www.yellowmaps.com/usgs/topo.cfm?map=nm-901895-deep-tunnel-%28historical%29