Umpqua River entrance.

1946

Bascom

Umpqua River. Winchester Bay.

1946

Bascom

Landforms of the Umpqua South Area, the Oregon Dunes National Recreation Area, Oregon.

1980

Richmond, Bruce M.

Landforms of the Umpqua South Area, the Oregon Dunes National Recreation Area, Oregon - Continued.

1980

Richmond, Bruce M.

Eolian Activity. Coastal Dunes-Transverse. Reedsport, Ore.

1966

O'Brien, Emmett J

1:63k

Map of Oregon Territory West of Cascade Mountains

1855

U.S. General Land Office

1:1m

Oregon playground map

1936

Oregon Recreational Service

Lower Oregon and Upper California.

1853

Tennent, Thomas

1:1m

Northern Boundary of California to Columbia River.

1861

Williamson, R.S.

1:760k

Oregon road map.

1935

Standard Oil Company of California

1:1m