Inaccuracies become more apparent as the user zooms in.
Site Map Special thanks to Dr. Peter August and others at the URI Environmental Data Center for advice on scale and graphics. GIS and other non site-level data are useful for general assessment but the user must keep scale limitations in mind and request more refined data when needed. Switching from one type of scale to the other can be confusing. The table below presents corresponding ratio and equivalent scales. It is acceptable to use these different scale data together, but be aware that inaccuracy can be compounded.