The Powell River streetview pictures were taken in 2009, so you can still find the other sirens. One was located on Duncan street
https://www.google.com/maps/@49.835903, ... P-_XxA!2e0, another was located on Drake street
https://www.google.com/maps/@49.87087,- ... sCQoqw!2e0, another was located on Marine Avenue [it was a rotational CLM, not on streetview], and another was on King street [omni CLM, not on streetview], and there used to be a pole on Thunder Bay road that clearly used to have an omni CLM on it, but the actual siren had been removed. If you look closely here, you can see a pole from a rotational CLM, but the siren was removed, and was replaced with a light. That setup still remains.
https://www.google.com/maps/@49.836987, ... q91eWA!2e0