31-4-203Interstate Highway 190 from Rapid City to Interstate Highway 90.

The state trunk highway system includes the following in Pennington County:

From the junction of Omaha Street and West Boulevard in Rapid City north via Rapid City to Interstate Highway 90 north of Rapid City north of the southeast corner of section twenty-six, township two north, range seven east.

Source: SL 1984, ch 209, § 76.