St. Paul was, and is, in site trunking from what I understand - no reachback to the rest of the system. Site trunking still allows ALMR talkgroups, but it acts as (sort of) its own standalone system. For example, if two people used talkgroup X on island, within the footprint of that one site, they would hear each other. But person in, say, Fairbanks, would not be able to communicate with the people on the island using that same talkgroup. Same would happen if connection between any other neighbor sites is interrupted.