Seems like Michigan should be considering a limit so we could get a few back in the area. Just a few years back the numbers started declining as guys from everywhere were driving great distances to find them. Local fur buyers numbers have shown the decline, and there just isn't many beaver anymore, especialy on state lands. Used to love the spring trapping, but even if you leave seed there's going to be another trapper or two hitting it as soon as you leave. Our season currently goes from Nov 1st to April 15th, far too long to not expect multiple trappers in on one colony. Fortunately there's still private property with a few, but even those areas are dwindeling.