Interesting that they are continuing to close down DGPS stations. The possible new to me stations that could be heard on these channels:
Miller's Ferry is on 320, so maybe better reception from Richmond, BC?
Rock Island is on 311, there's a station from Norway there as well.
Louisville is on 290, I guess Penobscot will become dominant.
St. Paul (Alma) is on 317, nothing really, I only see two Chinese stations there.