Some Oregon Zoo staff went so far as to travel all the way to Ireland in order to visit Dublin Zoo and find out some tips on how to create a fantastic habitat for Asian elephants. "Elephant Lands", a $57 million complex in Oregon that opens next year, took some information from Dublin and various other zoos and even special sand from Vancouver, Canada.
When I visited last year I was very surprised to see this enclosure is shared with female blackbuck! First time I had seen mixed species with elephants!