It is part of the Denver Park and Parkway System, which includes 16 parkways and 15 parks. It runs along the channel of Cherry Creek and includes the boulevard and triangles.[2][3]
Design has been credited to both George Kessler and landscape architect S.R. DeBoer.[1][4][5] The National Register Nomination states "Although the basic design was Kessler's, DeBoer's strong hand was involved in much of the planting design..."[1]
The boulevard is named for Robert W. Speer, "who, according to some, single handedly brought the City Beautiful movement to Denver during his terms as mayor (1904-1912 and 1916-1918)."[2]