Denver. Streets. Boulevard F Graded in 1871. RMN July 11, 1890 view. D M F 3 #14 April 1, 1911 p-13 Formerly "The Boulevard" it was parked with cottonwood trees 30 years ago; promised to become Denver's aristocratic street. Times Ap 13, 1902 p.9 c.3 Canal leading from it to Sloan's Lake navigated by small pleasure steamboat. Times Ap 13, 1902 p.9 c.3 Improvements asked would make boulevard most beautiful street of city; roam for two rows of shade trees with driveway on each side. Times Ap 15, 1902 p.8 c.4 municipal facts