I live in CO. I haven’t checked out too many of the rivers but some of the main rivers I boat are missing. Namely, all gauges on the Arkansas River have said N/A for the past 6 to 12 months. On other apps, they show the flows. Also, the Poudre River is not listed. These are two huge volume rivers. I tried to contact the developer, but no contact info is listed. Disappointing. Seems like a lot of these river apps start out good and then the developers abandon them.