(CO.) Map of Colorado Territory ~Fall 2019~ It seems that rock density

It seems that rock density can impact gravity and thus offer those doing underground exploration a sense of what may occur deep underground

Image size is 13 x 16 (inches)

Size is approximately 18 x 19 (inches)

with several interesting alterations

(CO.) Map of Colorado Territory ~Fall 2019~ It seems that rock densityMap of Colorado Territory, Compiled from Government Maps & actual Surveys. This map created just a few months after the territory's establishment, has been called an "exercise in good intentions", as little cartographic information had been accumulated, but just shows the major features as best as they were understood. The recently appointed Francis Case, who made this map had experience in the region as he worked on the Pacific Railroad Survey, and