Yamhill County (Or.)2014-04-182014-04-182009-11-16https://hdl.handle.net/1794/1706411 pp. Adopted 2009-11-16. Department of Land Conservation and Development Notice of Adopted AmendmentTo increase the urban growth boundary of the City of Yamhill by approximately 20 acres.en-USPublic DomainLand UseYamhill County Notice of Adopted Amendment (2009-11-16)Adopted Plan