State Highway 46 is a highway in Colorado that connects Golden Gate Canyon State Park to Colorado State Highway 119 near Black Hawk.

SH 46 runs 6.6 miles (10.6 km), starting at a junction with SH 119 northwest of Black Hawk. It runs east through Golden Gate Canyon State park. At the Jefferson County line the state highway ends and the road east continues as Jefferson CR 70.

The entire route is in Gilpin County