Happy Valley (Or.)2014-04-012014-04-012007-11-14https://hdl.handle.net/1794/1433332 pp. Adopted 2007-11-14. Department of Land Conservation and Development Notice of Adopted AmendmentAnnexed into City of Happy Valley by expedited process Clackamas County Assessors map 12E25B tax lot 2400en-USPublic DomainLand UseHappy Valley Notice of Adopted Amendment (2007-11-14)Adopted Plan