The route of the federal Great River Road consists of sections that conform to the FHWA guidelines and that were eligible for the Great River Road funds in the 1970s and early 1980s. The states have designated alternative routes that include sections with significant scenic, historic, and recreational interest. While the federal Great River Road crisscrosses the river within each state, the alternative routes provide Great River Road routes on both sides of the river from the headwaters to the gulf. The Mississippi River Parkway Commission makes no distinction between the federal and state routes in its promotional efforts. However, some states do use highway signs that distinguish between a federal and state route.