The following files have been uploaded to
the Files area of the main@Dark-Sky-Communities.groups.io group.
By: David Oesper
2016 light pollution map of Arizona, New Mexico, and West Texas from http://djlorenz.github.io/astronomy/lp2006/overlay/dark.html. Thanks for bringing this to my attention, John Rummel! You can toggle back and forth between 2006 and 2016 data, have different underlying maps to choose from, and can adjust the contrast between geography and the light pollution overlay with a slider. Nice!