It runs 94.6 miles (152.2 km) west-to-east in Roger Mills, Dewey and Custer counties.

From Roll, the highway travels 21 miles (34 km) to a junction with SH-34 just south of Leedey.

[3] However, the road was removed from the state highway system just over a year later, on the last day of 1937.

The first extension of the highway came on June 20, 1940, when it was extended west to end at US-283 in Roll.

[1] The final extension occurred on October 1, 1945, when the highway was extended south down US-283 to Cheyenne, then west to the Texas state line.

The first, on April 3, 1961, relocated the highway west of Aledo, while the other one, on May 5, 1964, adjusted it between Roll and Angora.

[1] The current SH-47A is a 2.15-mile (3.46 km) loop route that connects to SH-47 at both ends west of Cheyenne.

[5] The highway is entirely located within Roger Mills County and the Black Kettle National Grassland.