There wasn't a thread for the Oregon Zoo, but it is located in the city of Portland, in the State of Oregon in the U.S.A. I live in Canada but have taken the 5 hour drive down and visited the zoo twice in the last two and a half years. I've gone for a weekend getaway with my wife, and taken in other sights in the city as well as the zoo. The zoo has about 1,200 animals, and it is divided into geographic regions. There aren't any truly superb exhibits that can be compared to other zoos, but in general the enclosures are done well and there aren't many poor ones. Overall it is a solid zoo that is attempting to join the big league. They have 7 Asian elephants, and have one of the best breeding records for elephants of any zoo in North America (27 calves born). However, the elephant enclosure is quite poor, and nothing like Melbourne's enrichment-packed paddocks. The one great thing about this particular zoo is that they are consistently improving, and year after year they are building new exhibits. In the two years that divided my visits they built new enclosures for ocelots, bobcats, american black bears, cougars, visayan warty pigs and babirusa pigs. That's six new animal species in only two years... In May '08 they are tripling the size of their orangutan exhibit, and the 3 orangs will share their space with a pair of white-cheeked gibbons. Then in May '09 there is a "Predators of the Serengeti" exhibit with a species of mongoose, african rock pythons, african wild hunting dogs, cheetah, caracals, and african lions. The mongoose will have long glass tunnels that stretch out of their exhibit and into the caracal exhibit, and so the zoo is hoping that the mongoose running in and out of the caracal cage (fully protected) will provide enrichment for the cats.