Ione North

1968

1:24k

Ione South

1968

1:24k

Hermiston

1984

1:100k

Hermiston

1984

1:100k

Pendleton

1953

1:250k

Pendleton

1953

1:250k

Pendleton

1953

1:250k

Pendleton

1953

1:250k

Heppner

1981

1:100k

Northern Boundary of California to Columbia River.

1861

Williamson, R.S.

1:760k