The highway has changed paths many times since its formation in 1941, at one point connecting to Big Cottonwood Canyon and Salt Lake County.

The route begins at a single-point urban interchange with I-80 at exit 145 (which is referred to as Kimball Junction) and heads south on a four-lane undivided highway, passing through commercial development.

As the route exits Park City and heads into rural Summit County, a runaway truck ramp appears on the east side of the road, serving northbound traffic.

As the highway enters more forested and elevated terrain, it turns southwest and continues in a general southerly direction through Ontario Canyon before terminating at the Wasatch County line.

[3]The entire route between the I-80 interchange and the seasonal closure point near the Empire Lodge of Deer Valley Resort is included in the National Highway System.

[9] The initial designation of SR-224 was made in 1941 as a short spur from SR-113 in Midway to Schneitter's Hot Pots, now the Homestead Resort.