Colorado Mobile/SMS/Email Emergency Alert Systems List
The list can be found at DEM's Colorado SMS/Text Alert and Mobile Emergency Alert Systems on DEM's site.
The initial list of systems was geared towards identifying available County-based systems. That said, many municipalities and other organizations also maintain robust alert systems, such as the City of Denver. So, I am now starting to add cities, towns and other organizations by County location, to the list so expect this initial list to grow!
If I need to add one you know about - shoot me an email to firstname.lastname@example.org and we'll get it online. Thanks!