 SH 74 passes through many of Denver's mountain parks, including Bergen Park and Dedisse Park. Established in 1909 by Colorado governor Robert W. Speer, the system encompassed several areas west of the city, comprising the first city-owned park system in the world. SH 27, as the Bear Creek Canyon Scenic Mountain Drive was designated at the time, ran past the Denver Motor Club in Idledale in addition to newly purchased parks. During the 1910s, Denver was granted the ability to enforce laws pertaining to these parks; a speed limit of 20 miles per hour (32 km / h) was set along the roadway uphill and 15 miles per hour (24 km / h) downhill. In one of the parks, Red Rocks Park near Morrison, a CCC camp was established in 1935 as part of a New Deal work relief program. The enlistees here built a large amphitheater in the park. Numbered camp SP-13-C, it is the only CCC camp left in the state. Both the camp and the section of SH 74 between Idledale and Morrison, known as the Bear Creek Canyon Scenic Mountain Drive, are listed on the National Register of Historic Places.
