Digital Sanborn Maps, 1867-1970, provides academic and public libraries digital access to more than 660,000 large-scale maps of more than 12,000 American towns and cities.
Elevation[s] on this map are referred to sea level. A line of levels was run from a Bench Mark at the end of Fifth Street. This Bench Mark was established by the State Highway Commission from a USGS Bench Mark at Grimesland.