Browse Items (18 total)

Photograph of mining buildings in Lawson, Colorado (owned by Columbine metals), looking northeast, taken for the I-70 project before the interstate was built. Shows buildings and rail tracks. Sign reads "Proj. 1 70-3-7 Parcel 197-198."

Photograph of the interior of an unknown building in Lawson, Colorado (owned by Columbine metals), taken for the I-70 project before the interstate was built. Part of the roof is gone. Sign reads "Proj. I 70-3-7 Parcel 196-198."

Photograph of the interior of an unknown building in Lawson, Colorado (owned by Columbine metals), taken for the I-70 project before the interstate was built. Includes old equipment. Sign reads "Proj. I 70-3-7 Parcel 196-198."

Photograph inside a mining tunnel (owned by Columbine metals) in Lawson, Colorado, taken for the I-70 project before the interstate was built. Shows tracks and support beams. Sign reads "Proj. I 70-3-7 Parcel [no number listed]."

Photograph inside a mining tunnel (owned by Columbine metals) in Lawson, Colorado, taken for the I-70 project before the interstate was built. Shows tracks and support beams. Sign reads "Proj. I 70-3-7 Parcel [no number listed]."

Photograph of the Dumont Mill and bridge in Colorado (owned by Front Range Mines, Inc.) over US Highway 6, looking southwest, taken for the I-70 project before the interstate was built. Sign reads "Project I 70-3-7 Parcel 121."

Photograph of the Dumont Mill in Colorado (owned by Front Range Mines, Inc.), looking south, taken for the I-70 project before the interstate was built. Sign reads "Project I 70-3-7 Parcel 121."

Photograph of Clear Creek and US highway 6 between Georgetown and Silver Plume, Colorado, taken for the I-70 project before the interstate was built. Includes a car and a billboard. Sign reads "Proj. I 70-3-36 Parcel - 137 REV 9-9-66 Looking W…