Hopefully you have a digital scanner, definitely I hope your not just putting in frequencies, otherwise you'll be hearing plenty of things outside your county, plus most annoying of course is all police is encrypted. So unknown what radio you have, whistler/radio shack would let through the encrypted noises, Unidens it would show up as ENC, but quickly resume scanning.
If you have a digital, program with talkgroups is the only way to go so then you can filter out the encrypteds, listen to talkgroups and follow them, pause/hold on an important activity it just goes on and on honestly.
Far as the old frequencies, they were removed since they no longer were in use a few months ago.