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Douglas County (Ill.) -- Maps. : Maps  1986 1
Douglas County (Ill.) -- Maps, Topographic.   12
Indians of North America -- Oregon -- Douglas County -- Antiquities. : Main Stacks  1980 1
Douglas County (Kan.) -- History. : M&M Microfilm  1883 1
Douglas County (Kan.) -- Newspapers.   3
Lakes -- Colorado -- Douglas County -- Maps. : Maps  1976 1
Land titles -- Registration and transfer http://id.loc.gov/authorities/subjects/sh85074336 -- Nevada : Internet  2017 1
Land titles -- Registration and transfer -- Nevada -- Douglas County.   2
Land titles -- Registration and transfer -- Oregon -- Douglas County.   4
Land titles -- Registration and transfer -- Washington (State) -- Douglas County.   4
Land use -- Colorado -- Douglas County -- Maps. : Maps  1974 1
Land use -- Oregon -- Douglas County -- Planning. : Government Documents  1994- 1
Land use, Rural -- Colorado -- Douglas County -- Maps. : Maps  2018 1
Land use, Rural -- Oregon -- Douglas County -- Maps. : Maps  2017 1
Landslides -- Colorado -- Douglas County -- Maps. : Maps  1972 1
Manganese ores -- Colorado -- Douglas County. : Government Documents  1952 1
Mercury ores -- Oregon -- Douglas County.   2
Mines and mineral resources -- Oregon -- Douglas County.   4
Douglas County (Minn.) -- History. : Internet  1866 1
Douglas County (Minn.) -- History -- Poetry. : Internet  1866 1
Douglas County (Mo.) -- Maps, Topographic.   5
Natural resources -- Oregon -- Douglas County -- Management.   2
Douglas County (Neb.) -- Newspapers.   2
Douglas County (Nev.) : Government Documents  1992 1
Nickel -- Oregon -- Douglas County. : Government Documents  1890 1
Nickel ores -- Oregon -- Douglas County.   2
Nitrates -- Environmental aspects -- Nevada -- Douglas County. : Government Documents  1999 1
Nutrient pollution of water -- Nevada -- Douglas County. : Government Documents  1999 1
Old growth forests -- Oregon -- Douglas County. : Government Documents  2003 1
Douglas County (Or.) : Government Documents  1999 1
Douglas County (Or.) -- Maps. : Maps  2017 1
Douglas County (Or.) -- Maps, Topographic. : Maps  2002 1
Douglas County (Or.) -- Newspapers. : Internet    1
Ore deposits -- Colorado -- Douglas County. : Government Documents  1963 1
Phytogeography -- Colorado -- Douglas County -- Maps.   2
Public lands -- Oregon -- Douglas County.   2
Railroads -- Abandonment -- Environmental aspects -- Nebraska -- Douglas County. : Government Documents  1981 1
Railroads -- Nebraska -- Douglas County -- Right of way. : Government Documents  1981 1
Rain and rainfall -- Oregon -- Douglas County -- Maps. : Internet  2011 1
Real property -- Kansas -- Douglas County -- Maps. : Special Collections  1913 1
Recreation areas -- Washington (State) -- Douglas County. : Maps  2001 1
Recreation areas -- Washington (State) -- Douglas County -- Maps.   2
River sediments -- Nevada -- Douglas County. : Government Documents  1988 1
Roads -- Oregon -- Douglas County -- Maps.   2
Slopes (Physical geography) -- Colorado -- Douglas County -- Maps. : Maps  1972 1
Soil erosion -- Colorado -- Douglas County -- Maps. : Maps  1972 1
Soil surveys -- Colorado -- Douglas County. : Government Documents  1974 1
Soils -- Colorado -- Douglas County -- Maps. : Government Documents  1974 1
Stream measurements -- Nevada -- Douglas County. : Internet  2006 1
Streamflow -- Nevada -- Douglas County. : Internet  2004 1
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