Question

In what state was the first topographic map (relief map using contour lines) issued in the united states? question 2 options:

Answer 1

The first recorded topographical maps issued by the government were based on the East Coast, of Boston Harbor, in 1846. A decade previous, however, in 1835, the Geological and Topographical Survey of Maryland had created a map of Maryland where the relief was shown by visual contour lines, and this 1835 map is considered the first state-issue topographical map.