Adding highways near Idaho Springs
Adding old US-6 through Geoorgetwon
Extending I-70, Mount Vernon Canyon
Extending I-70, Beaver Brook to Genesee
Extending I-70, Beaver Brook to Genesee
Extending I-70, Beaver Brook to Genesee
Extending I-70 over Floyd Hill
Extending I-70 over Floyd Hill
Extending I-70, Idaho Springs to US-6
Extending I-70, Idaho Springs to US-6
Extending I-70, Idaho Springs to US-6
Extending I-70, US-40 to Idaho Springs
Extending I-70, Silver Plume to US-40
Extendng I-70, tunnel to Silver Plume
Extendng I-70, tunnel to Silver Plume
Extendiing I-70, tunnel to Silver Plume
Changing old D&RGW tracks north of Colorado River at Glenwood Springs