These majestic cliffs on both sides of the highway may have been a welcome landmark for pioneers entering Lake Fork Valley from the north. Corps of Engineers Lieutenant E. H. Ruffner in his “Reconnaissance in the Ute Country, Season of 1873” report describes the formation as:
The “Gateway” is about 500 feet high and of basalt. The upper 50 to 200 feet is [sic] perpendicular cliff, below which slopes of huge sharp-angled rocks, resembling the Palisades of the Hudson, columnar and regular...