SUS 200 / 231 - Environmental Science

"The National Map is now offering a collection of small-scale datasets that can be downloaded for free...Small-scale maps have an advantage over large-scale maps when there is a need to show a large area in a single view. This makes small-scale maps an ideal solution for scientists, decision-makers, and planners needing to provide a geographical context for the research projects. Generally, certain geographical and feature details found in large-scale maps are limited or omitted in small-scale maps. The choice of small-scale maps always comes down to the intended use of the final map.

The National Map collection of 197 small-scale datasets can be downloaded at small-scale data download page" (home page).