In the driftless area, early explorers noted a small, isolated vertical rock. The first settlers removed its easily available rubble for building foundations and chimneys, and soon horses and buggies cut between the rocks and established the roadway. The natural gateway became a memorable view for passers-by. By 1986, the need for safe movement of traffic conflicted with the desire to preserve the scenic and historical value of the Little Rock. Having lived all his life in its shadow, Halsey Rinehart spearheaded efforts to preserve this natural monument for future generations.