1954 Map of Ontario

This historical map portrays the area of Ontario in 1954, primarily covering San Bernardino County as well as portions of Los Angeles County and Riverside County. Featuring a scale of 1:62500, this map provides a highly detailed snapshot of the terrain, roads, buildings, counties, and historical landmarks in the Ontario region at the time. Published in 1959, it is one of 5 known editions of this map due to revisions or reprints.