This is the inset map for Excelsior Springs from the 1957 official state highway map. Numbered routes shown on this map were US 69, Spur US 69, and Missouri 10 (in red). The dark blue route indicated to "Rte. Mo. 210" did not have a designation shown on this map. The inset map for Excelsior Springs in the 1958 official map showed the route as supplemental route H.