AMP: Athena-Holdman Hwy #334/0 Location: Athena-Holdman Hwy and OR 37, Umatilla Cty No reassurance shield as Oregon 334 begins. AMP: 8 Location: Athena-Holdman Hwy and Havana-Helix Hwy, Umatilla Cty Eight miles later, we’ll approach Oregon 335 and the west segment of Oregon 334 ends. Follow 335 south to Pendleton and 335 north to Helix. Take 335 north … Continue reading Oregon Route 334, OR 37 to OR 335