Pueblo is one of the largest steel-producing cities in the United States, for which reason Pueblo is referred to as the "Steel City". The Historic Arkansas River Project (HARP) is a riverwalk in the Union Avenue Historic Commercial District, and shows the history of the devastating Pueblo Flood of 1921.
Pueblo is one of the l,argest steel-producing cities in the United States, for which reason Pueblo is referred to as t.he "Steel City" The Historic Arkansas River Project (HARP) is a riverwalk in the Union Avenue Historic Commercial District and shows the history of the devastating Pueblo Flood of 1921.