I think the guide book is still being sold at the Portland Rock Gym. Yea, there's a crag nearby, called Beaconzone. Just a little east of Ozone. Other than that, you have Broughtonzone on the other side of the river.
Chad
p.s. OK, so there's no other crag near Ozone that has 'zone' in it name that I'm aware of. If you want to get together sometime and hit up one of the local spots, send me a PM.
Not true. It is called the "dropzone" or the Far Side. It is about 500 feet east of Ozone. I think the last of the books have been sold.