About Pendleton City leadership Public Notices Links Contacts and Departments Employment Services and Forms Water Supply Development Pendleton Convention Center D.O.T. Rec. Center 500 SW DORION AVE | PENDLETON, OR 97801 | ( 541) 966-0201 Welcome to Pendleton OR, the Round-Up City. In cooperation with the Pendleton Chamber of Commerce, our friendly merchants and citizens, and our friends of the ...