Let the record show that an ephemeral Signature comment triggered this comment.
KNON made this list:
gdhour.com/stations.html#other along with two stations in Eugene and two in Portland. Note the #other -- there appears to be a vast, subterranean network centered on NY State.
gdhour.com/stations.html
Ontopic: Could a 55-gallon drum substitute for the captured vortex? On powered rollers for A-B testing?