What are the data region definitions for the USA terrain and IFR data sets?
The labels suggest they may be organized in the same way that the chart supplements are (NE, SW, etc.),
However, (for example) I find the low IFR chart for the Avare's SW region has an eastern boundary somewhere in UT/AZ. Colorado is not part of the SW data set as suggested by the region definition for SW Chart supplements.
Let's read the in-app help:
"... and online FAA chart reference maps to help you select Downloads in Avare."
Ok, here is the FAA's chart coverage definitions for the low IFR charts:
No hint of tidy boundaries based on compass points as the Avare data regions are named.
Any guidance to offer? Where are the Avare data boundaries documented?