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Maps of Washington (State) and the Pacific Northwest, 1863-1994

By Finding aid prepared by Elizabeth Nielsen and Anna Stewart.

Collection Overview

Title: Maps of Washington (State) and the Pacific Northwest, 1863-1994

Predominant Dates: 1909-1975


Primary Creator: Judge, W. Elliott (William Elliott)

Extent: 3.5 cubic feet. More info below.

Arrangement: The Maps of Washington (State) and the Pacific Northwest are arranged into 7 series: I. Forestry Maps, 1898-1975; II. Public Land Maps, 1915-1986; III. Geologic Maps, 1936-1994; IV. Hydroelectric and Power Maps, 1948-1983; V. Superseded Topographic Maps, 1909-1965; VI. State of Washington Maps, 1909-1962; and VII. Pacific Northwest Maps, 1863-1975.

Languages of Materials: English [eng]


The Maps of Washington (State) and the Pacific Northwest consist of historic and superseded maps depicting forest resources, geology, public lands and land use, hydroelectric projects, highways, and railroads in Washington and the Pacific Northwest region. The regional maps include Oregon, Washington, Idaho, Montana, and, in some cases, California and Wyoming.

Scope and Content Notes

The Maps of Washington (State) and the Pacific Northwest consist of historic and superseded maps depicting forest resources, geology, public lands and land use, hydroelectric projects, highways, and railroads in Washington and the Pacific Northwest region. Most of the maps in the collection are of all or part of the State of Washington. Regional maps depict Oregon, Washington, Idaho, Montana, and, in some cases, California and Wyoming. The maps were created by various U.S. government agencies, State of Washington departments, and private organizations.

The collection includes maps created over a 150-year period from the mid-19th century through the 1990s, with the bulk of the maps documenting the early 20th century. Hand-drawn manuscript maps created by early explorers and surveyors as well as maps created from satellite imagery are part of the collection. Regional maps as well as detailed, local maps are available.

Maps of national forests and national parks, primarily in Washington, are included in the collection. These include several maps of Mount Rainier and other Cascade peaks, many of which depict the extent of mountain glaciers.

Of special note are maps of hydroelectric projects in the Columbia River Basin. These provide information on dams, reservoirs, irrigation projects, and power transmission. The maps include government publications on projects' status, local newspaper documents, and maps depicting power plant location and the distribution and transmission of electricity.

Administrative Information

More Extent Information: 158 maps; 6 map folders, 2 roll storage containers, and 1 oversize box

Statement on Access: Collection is open for research.

Acquisition Note: These materials were transferred from the Oregon State University Libraries' maps collection to the Special Collections & Archives Research Center in 2014.

Related Materials: Additional forestry maps for Oregon are available in several collections, including the Bureau of Land Management Maps of Oregon (MAPS BLM), Forest Type Maps of Oregon (MAPS ForestType), National Forests in Oregon Maps (MAPS USFS), Oregon Department of Forestry Maps (MAPS ODF), and Donald B. Zobel Collection of Historic Forestry and Vegetation Maps (MAPS ZobelMaps).

Preferred Citation: Maps of Washington (State) and the Pacific Northwest (MAPS PNW), Oregon State University Special Collections and Archives Research Center, Corvallis, Oregon.


Judge, W. Elliott (William Elliott)
Bonneville Project (U.S.)
Geological Survey (U.S.)
Inland Empire Waterways Association
Newcomb, Reuben Clair (1909-1998)
Oregon Historical Society
Pacific Northwest Forest Experiment Station (Portland, Or.)
Plummer, Fred G. (Fred Gordon) (1864-1913)
Plummer, George H.
Raisz, Erwin (1893-1968)
Rankine, J. H.
United States. Army. Corps of Engineers
United States. Bureau of Agricultural Economics
United States. Bureau of Reclamation
United States. Bureau of the Census
United States. Forest Service. Pacific Northwest Region
United States. General Land Office
United States. Soil Conservation Service
Washington (State). Department of Natural Resources
Washington (State). Division of Forestry
Washington (State). Division of Geology
Washington (State). Division of Mines and Geology
Washington (State). Office of the Secretary of State
Weaver, Charles E. (Charles Edwin) (1880-1958)

People, Places, and Topics

Bonneville Dam (Or. and Wash.)
Columbia River--Maps.
Columbia River Watershed--Maps.
Dams--Washington (State)
Earthquakes--Washington (State)--Maps.
Electric power distribution--Washington (State)
Forests and forestry--Oregon--Maps.
Forests and forestry--Washington (State)--Maps.
Geology--Washington (State)--Maps.
Glaciers--Washington (State)--Maps.
Irrigation--Washington (State)--Maps.
Landforms--Northwest, Pacific--Maps.
Land use--Washington (State)--Maps.
Mount Rainier National Park (Wash.)--Maps.
National parks and reserves--Washington (State)
Natural Resources
Nisqually Glacier (Wash.)--Maps.
Northwest, Pacific--Maps.
Pacific Crest Trail--Maps.
Physical geography--Northwest, Pacific--Maps.
Public lands--Washington (State)--Maps.
Reservoirs--Northwest, Pacific.
Rivers--Washington (State)--Maps.
Saint Helens, Mount (Wash.)
Seattle (Wash.)--Maps.
Soils--Washington (State)--Maps.
Washington (State)--Maps.
Water-power--Northwest, Pacific.

Forms of Material

Forestry maps.
Geological maps.
Maps (documents)
Pictorial maps.
Topographic maps.

Box and Folder Listing

Series 1: Forestry Maps, 1898-1975
Series I consists of maps depicting forest lands, primarily in Washington, prepared by the U.S. Forest Service, U.S. Geological Survey, U.S. Soil Conservation Service, or State of Washington Division of Forestry. The maps provide information on land classification and forest types, including timber age, quality, and volume. The series includes several original maps prepared in 1898-1900 as well as photocopies of maps from that period. Maps depicting the site potential for western Washington and Oregon are also included.
Extent: 25 maps

Folder-Item 1.1: Forest Protection Districts for the State of Washington, 1950
Prepared by State of Washington Division of Forestry.
Folder-Item 7.1: Forest Type Map of Washington, 1936
The color map is published on 4 sheets with one sheet for each quadrant of the state (northwest, northeast, southwest, and southeast). Two full sets plus a third copy of the southwest quadrant are included. Prepared by staff of the Pacific Northwest Forest Experiment Station. Depicts non-forest lands, non-commercial forest types, and timberland types. Approximate scale of 1:250,000.
Extent: 9 sheets

Folder-Item 7.2: Map of Washington Showing Classification of Lands, 1898
Color map shows cut areas, timberless areas, burned areas, and six ranges of estimated board feet per acre. Prepared by George H. Plummer, F.G. Plummer, and J.H. Rankine and published with the U.S. Geological Survey Annual Report, Part V. Approximate scale 1:405,000.
Folder-Item 1.2: Land Cover of Puget Sound, Washington from Landsat Digital Data, 1975
Scale 1:250,000.
Folder-Item 1.3: Washington, General Classification of Land According to its Capability for Use, 1949
Scale 1:750,000. Color map depicts 4 classes of land suitable for cultivation and 4 classes not suitable for cultivation that may be appropriate for grazing or forest. The map also shows several zones with similar conservation problems. Prepared by the U.S. Soil Conservation Service; issued to accompany Washington State College Institute of Agricultural Sciences Popular Bulletin no. 200.
Box-Folder 2.1
Item 1: Land Classification of Seattle and Tacoma Quadrangles, 1900
Color maps show areas of virgin timber and merchantable forests. Prepared by the U.S. Geological Survey; scale 1:125,000.
Extent: 2 maps

Item 2: Land Classification and Density of Standing Timber for Seattle and Tacoma Quadrangles, 1899
Color photocopies; scale 1:125,000.
Extent: 2 maps

Item 3: Land Classification of Mount Rainier Forest Reserve, 1899
Color photocopy; 1:250,000 scale.
Item 4: Olympic Forest Reserve, 1899
One map depicts land classification; a second shows cedar proportions; and a third shows red fir proportions. Color photocopies at 1:250,000 scale.
Extent: 3 maps

Item 5: Locations and Extent of Forest Reserves and National Parks in the Western United States, 1899
Color photocopy.
Item 6: Forest Types of the Douglas-fir region for western Washington and Oregon, undated
One sheet each for northwestern and southwestern Oregon and Washington. The maps show areas of "saw timber", second growth, recent cut-overs, and nonforest land. Scale of 1 inch = approximately 20 miles.
Extent: 4 maps

Item 7: Site Maps of Douglas fir regions for Western Washington and Oregon, 1946
Scale 1 inch = 20 miles; one copy of Oregon map and two copies of the Washington map. These maps accompany Better Douglas Fir Forests from Better Seed, by Leo A. Isaac and are available online.
Extent: 3 maps

Series 2: Public Lands Maps, 1915-1986
Series II consists of maps depicting public lands, primarily in Washington. Most of the maps depict National Forests and National Parks and provide information on recreational areas, roads, and trails. Maps of the Pacific Crest Trail in Washington and California depict trail lengths, proposed routes, and scenic and historical points along the trail. Of special note are several maps of Mount Rainier and plans and profiles of the Nisqually Glacier as well as maps of the Mount St. Helens area before the catastrophic May 1980 eruption. The maps were prepared by the U.S. Geological Survey, U.S. Forest Service, and Washington State Department of Natural Resources.
Extent: 29 maps

Folder-Item 1.4: Washington's Major Public Lands, 1973
Prepared by State of Washington Department of Natural Resources; includes brochure text. Approximate scale 1 inch = 10 miles.
Sub-Series 2: National Forests, 1936-1973
The maps for individual national forests include text and photos for visitors.
Folder-Item 1.5: Region 1, 1936
Depicts national forests in Idaho, Montana and eastern Washington and Oregon. Approximate scale of 1 inch = 20 miles.
Folder-Item 1.6: Colville, 1973
Scale 1 inch = 2 miles.
Folder-Item 1.7: Gifford Pinchot, 1965
Approximate scale 1 inch = 4 miles.
Folder-Item 1.8: Okanogan, 1960
Approximate scale 1 inch = 4 miles.
Folder-Item 1.9: Olympic, 1949
Approximate scale 1 inch = 4 miles.
Folder-Item 1.10: Snoqualmie, 1963-1965
Approximate scale 1 inch = 2 miles.
Extent: 3 sheets

Folder-Item 1.11: Wenatchee, 1962
Approximate scale 1 inch = 2 miles.
Extent: 2 sheets

Sub-Series 3: National Parks, 1915-1986
Folder-Item 1.12: Lava Beds National Monument and Vicinity, 1936
Includes descriptive text.
Folder-Item 1.13: Olympic National Park, 1957
Shaded relief map; 1:125,000 scale.
Folder-Item 1.14: Mount Rainier, 1915-1966
Includes several topographic maps of the park as well as plans of the Nisqually Glacier made in 1951, 1955, and 1966 and longitudinal profiles made in 1966. Shaded relief maps of Mount Rainier are also included. Topographic maps show the extent of glaciers on Mount Rainier.
Extent: 7 sheets

Box-Item 1.15: Mount St. Helens, 1968-1986
Most of the maps depict the area before the catastrophic May 1980 eruption; one 1986 visitor map for the monument is included.
Extent: 5 sheets

Sub-Series 4: Pacific Crest Scenic Trail, circa 1960s - 1981
Folder-Item 1.16: Map of entire Pacific Crest Trail, circa 1960s
Folder-Item 1.17: California Pacific Crest Trail Proposed Location, undated
Folder-Item 1.18: California Pacific Crest Trail, 1981
At a 1: 720,000 scale.
Folder-Item 1.19: Washington Pacific Crest Trail, 1974
Series 3: Geologic Maps, 1936-1994
Series III consists of geologic maps, primarily of Washington. A soil map of the Pacific Northwest and a map of earthquakes in Washington and Oregon are also included. The bulk of the maps were produced by the U.S. Geological Survey or the State of Washington. Most of the maps are color and include descriptions of the geologic formations.
Extent: 13 maps

Folder-Item 3.1: Preliminary Geologic Map of Washington, 1936
Published by State of Washington, Department of Conservation and Development, Division of Geology; edited by George W. Stose. Two copies of the map are available.
Folder-Item 3.2: Geologic Map of Washington, 1961
Published by the State of Washington Division of Mines and Geology. Scale 1:500,000.
Folder-Item 3.3: Geologic Map of Washington, 1969
Compiled by A.E. Weissenborn of the U.S. Geological Survey. Scale 1:2,000,000.
Folder-Item 3.4: Geologic Map Index of Washington, 1949
Compiled by Leona Boardman; published by U.S. Geological Survey. Scale 1:750,000.
Folder-Item 3.5: Tentative Correlation of the Named Geologic Units of Washington, 1934
Compiled by M. Grace Wilmarth, Secretary of Committee on Geologic Names, U.S. Geological Survey.
Extent: 2 sheets

Folder-Item 3.6: Soil Map of the Pacific Northwest, undated
Includes Oregon, Washington, and Idaho; from Atlas of American Agriculture.
Extent: 2 sheets

Folder-Item 3.7: Areal and Structural Geologic Maps of Washington, undated
This map includes four maps on one sheet for different areas of Washington: (A) western and northern margin of the Olympic Peninsula; (B) a belt extending across the Puget Sound Basin into the Cascade Mountains; (C) the Quimper Peninsula; and (D) the Cathcart Cherry Valley region. The maps were prepared by Charles E. Weaver.
Folder-Item 3.8: Geologic Environment Map of Alumina Resources of the Columbia Basin, 1952
By E.G. Sohn.
Folder-Item 3.9: Tectonic Structure of the Main Part of the Basalt of the Columbia River Group, Washington, Oregon, and Idaho, 1970
Prepared by R.C. Newcomb and published by the U.S. Geological Survey as map I-587 in the Miscellaneous Geological Investigations series.
Folder-Item 3.10: Earthquakes in Washington and Oregon 1872-1993, 1994
By Susan K. Goter. Published as USGS Open File Report 94-226A.
Series 4: Hydroelectric and Power Maps, 1948-1983
Series IV consists of maps that provide information on proposed and existing hydroelectric projects in the Columbia River Basin. These maps include information on how the projects have affected the Columbia River and its tributaries. The series also includes maps depicting the service area of public and private electrical utilities and transmission of power across the northwest. The maps depict existing dams, proposed dams, and electrical transmission lines as well irrigation projects and canals. The maps of individual dams also include text about the dam and photographs. The maps were prepared by the U.S. Army Corps of Engineers; U.S. Bureau of Reclamation; U.S. Federal Power Commission; the Bonneville Power Administration, and the Inland Empire Waterways Association.
Extent: 27 maps

Folder-Item 4.1: Comprehensive Development Plan for the Columbia River Basin, 1948
Folder-Item 4.2: Multiple Purpose Projects in the Columbia River Basin, 1958
Folder-Item 4.3: Columbia Basin Project, 1951
Folder-Item 4.4: Columbia River Power System, 1948
Folder-Item 4.5: The Mighty Columbia, 1971
Folder-Item 4.6: Hydroelectric Projects for the Pacific Northwest, 1948
Folder-Item 4.7: Proposed Columbia Basin Development, 1948
Includes maps and profiles for hydroelectric projects.
Folder-Item 4.8: Columbia River Basin Comprehensive Plan of Major Dams, 1948
Folder-Item 4.9: Basin Map for Major Dam and Reservoir Development, 1958-1966
Extent: 3 sheets

Folder-Item 4.10: Bonneville Dam, 1965-1966
Extent: 2 sheets

Folder-Item 4.11: The Dalles Dam, 1966-1970
Extent: 2 sheets

Folder-Item 4.12: John Day Dam, 1965-1970
Extent: 2 sheets

Folder-Item 4.13: McNary Dam, 1959-1966
Extent: 2 sheets

Folder-Item 4.14: Willamette Falls Locks, 1970
Folder-Item 4.15: Service Areas: Operating Public Agencies and Co-operations, 1983
Shows service areas of invester-owned utilities.
Extent: 2 sheets

Folder-Item 4.16: Electric Power Plants, 1963
Extent: 2 sheets

Folder-Item 4.17: BPA Areas and Transmission Facilities, 1959
Folder-Item 4.18: Pacific Northwest Transmission System, 1958
Folder-Item 4.19: Principal Electric Facilities - Washington, 1948
Series 5: Superseded Topographic Maps, 1909-1965
Series V consists of superseded or obsolete topographic maps published by the U.S. Geological Survey for various locations in Washington. Most of the maps are 15 minute quadrangles (1:62,500 scale). The maps depict topography; vegetation cover; rivers and lakes; roads, railroads, and other transportation; political boundaries; and the boundaries of national forests and parks. Many of these maps are of peaks in the Cascade Range or Olympic Mountains and depict the extent of glaciers in those mountain ranges. Also of note are the Mount St. Helens and Spirit Lake sheets which show that area before the catastrophic 1980 volcanic eruption. A 1909 Seattle map is also included in the series. The Portland and Bridal Veil sheets include both Oregon and Washington.
Extent: 19 maps

Box-Folder 2.2
Item 1: Bridal Veil, 1954
Extent: 2 sheets

Item 2: Camas, 1942-1954
Extent: 2 sheets

Item 3: Chiwaukum Mountains, 1965
Item 4: Glacier Peak, 1950
Item 5: Kalama, 1943
Extent: 2 sheets

Item 6: Mount Baker, 1915-1942
These maps are at a 1:125,000 scale.
Extent: 2 sheets

Item 7: Mount Olympus, 1935-1956
Extent: 2 sheets

Item 8: Mount Shuksan, 1953
Item 9: Mount St. Helens, 1958
Extent: 2 sheets

Item 10: Mount Tom, 1957
Item 11: Portland, 1961
Item 12: Seattle Special, 1909
Item 13: Spirit Lake, 1957
Series 6: State of Washington Maps, 1909-1962
Series VI consists of various maps of Washington; most are of the entire state. They include highway maps and base maps as well as maps depicting public lands and irrigated lands. The maps were produced by the U.S. Geological Survey, Census Bureau, and Forest Service as well as the State of Washington.
Extent: 13 maps

Folder-Item 5.1: State of Washington, General Land Office, 1909-1924
Scale 1 inch = 12 miles. Compiled from the official records of the General Land Office; shows U.S. Reclamation Projects; national forests, parks, and game preserves; and Indian and military reserves. 1909 and 1924 editions; 1909 edition is encapsulated.
Extent: 2 sheets

Folder-Item 5.2: Map of Automobile Roads, State of Washington, 1924-1925
Prepared by U.S. Forest Service; depict paved, gravel, secondary, and proposed roads; descriptive travel information on verso. Scale 1 inch = 10 miles.
Extent: 2 sheets

Folder-Item 5.3: Highways, State of Washington, 1937
Prepared by State of Washington Department of Highways. Scale 1 inch = 10 miles. Includes travel information.
Folder-Item 5.4: Washington base map, 1918
Prepared by U.S. Geological Survey; this copy is a reprint made in 1944. Scale 1:1,000,000.
Folder-Item 5.5: State of Washington base map with highways and contours, 1962
Produced by U.S. Geological Survey; scale 1:500,000.
Extent: 2 maps

Folder-Item 5.6: Base maps for western Washington, 1933
Produced by the U.S. Forest; separate sheets for northwest and southwest quadrants. Scale 1 inch = 4 miles. Indicate state exchange areas.
Extent: 2 maps

Folder-Item 5.7: Industrial Map of the State of Washington, circa 1949
Prepared by Washington State Secretary of State; a pictorial map with no scale indicated.
Folder-Item 5.8: Washington: Location of Irrigated Lands in 1949, circa 1953
Prepared by U.S. Bureau of the Census. Depicts acreage of irrigated land reported in each county. Scale 1 inch = 10 miles.
Box-Item 8.1: Cram's Superior Map of Washington, 1954
Published by George F. Cram Company, edition no. 1517. Scale 1 inch = 9 miles (1:570,240). Depicts county boundaries in color; roads; and cities and towns. Includes an index of cities and towns with populations and inset maps of Washington trunk highways and Congressional districts in Washington.
Series 7: Pacific Northwest Maps, 1863-1975
Series VII consists of historic maps of the Pacific Northwest region. The maps depict Oregon and Washington or, in some cases, a broader area that includes California or Idaho and Montana. The maps depict railroads, highways, landforms, and land use. Several of the maps depict the Columbia Basin; one map of Puget Sound is also included. Several reproductions of mid-19th century manuscript maps are included.
Extent: 32 maps

Folder-Item 6.1: Engineers Official Map of the Pacific Northwest, circa 1930
Published by W. Campbell Judge; compiled by W. Elliott Judge. Depicts Oregon, Washington Idaho, Montana, and Wyoming and shows highways and railroads.
Folder-Item 7.3: Physical and Political Pacific Northwest, 1942
This color map was published for classroom use and depicts political boundaries as well as natural vegetation, annual rainfall, and population distribution for the northwest. The map includes Oregon, Washington, Idaho, and western Montana. Edited by Howard H. Martin, University of Washington, and Otis W. Freeman, Eastern Washington College of Education. Published as part of the Denoyer-Geppert Physical-Political Series. Scale 1:1,200,000.
Box-Item 8.2: Visual Relief Pacific Northwest, 1964
Denoyer-Geppert Series Map S165vr. Edited by J. Granville Jenson, Oregon State University; John C. Sherman, University of Washington was the consultant for Washington and Harry H. Caldwell, University of Idaho, for Idaho. Scale 1:665,280; color.
Folder-Item 6.2: Landforms of the Northwestern States, 1941-1965
By Erwin Raisz; depicts Oregon, Washington, Idaho, western Montana. Includes 1941 and 1965 (3rd revised) edition.
Extent: 6 maps

Folder-Item 9.1: Oregon-Washington Railroad & Navigation Co. Map of the Pacific Northwest, 1911
Depicts Oregon-Washington Railroad & Navigation Company existing and proposed rail lines; river steamboat lines; and other railroads. Carey irrigation projects and Reclamation Act project are also depicted on the map. The map is in poor condition and housed in a roll storage container. Use caution and care in handling the map.
Folder-Item 6.3: A New Map of Texas, Oregon, and California, circa 1975
This is a reproduction of the original 1846 map. The reproduction was printed for the Tillamook County Pioneer Museum.
Folder-Item 6.4: Outline Map of Oregon and Washington Counties, undated
Folder-Item 6.5: Map Showing Routes of Snake Country Expeditions - 1824-25 and 1825-26, 1950
Drawn by Ralph M. Shane, Warm Springs, Oregon. Depicts the area that now comprise Washington, Oregon, Idaho, Montana and Wyoming. This is a photocopy.
Folder-Item 6.6: Activity Centers and Soil Conservation Districts, Pacific Region, 1951
Prepared by U.S. Soil Conservation Service.
Folder-Item 6.7: Area Organization and Soil Conservation Districts, Pacific Region, 1953
Prepared by U.S. Soil Conservation Service.
Folder-Item 7.4: Seasonal Use of Western Range, 1958
Includes all of the western United States; hand-colored.
Folder-Item 6.8: Range Sheep - Major Seasonal Movements in Intermountain Region 1938-1939, circa 1939
Prepared by U.S. Department of Agriculture Bureau of Agricultural Economics from the records of the U.S. Forest Service and the U.S. Grazing Service. Color map.
Folder-Item 6.9: A pictorial map of Oregon and Washington, showing agricultural products and industries, 1940
Prepared by A. Petruccilli and published to accompany March 1940 issue of Fortune Magazine; no scale.
Folder-Item 6.10: Oregon Country, 1959
Pictorial map prepared by the Oregon Historical Society, probably to commemorate the Oregon centennial; no scale.
Folder-Item 6.11: Map of the Pacific Highway, 1915
Produced by the National Highways Association; depicts the highway in Washington, Oregon, and California.
Folder-Item 6.12: Map of the Oregon Coast and Redwood Highway, 1928
Tourist map and brochure.
Folder-Item 6.13: Air View of the Columbia River Scenic Route, 1916
A pictorial relief map published by the Spokane, Portland, and Seattle Railway Company.
Folder-Item 6.14: A Map by the Gentleman Fur Trader Alexander Ross, 1974
This is a reproduction of the 1849 manuscript map of the Columbia Basin.
Folder-Item 6.15: Columbia River Basin and Vicinity, 1927
This map ranges from British Columbia to California and from the Pacific Coast to Wyoming. Published by Port of Portland Commission.
Folder-Item 6.16: Mouth of the Columbia River, 1863
This is a reproduction of the original map.
Folder-Item 6.17: New Map of the Puget Sound Country, 1903
Prepared by Bellingham Bay Abstract and Title Insurance Company. Fifth revised edition; shows the Puget Sound area from Olympia to the Canadian border. This copy is a facsimile color reproduction of the 1903 map.
Folder-Item 6.18: World Aeronautical Chart of the Columbia River Area, 1957
This map includes areas of Washington, Oregon, and Idaho.
Folder-Item 6.19: World Aeronautical Chart of Crater Lake Area, 1960
This map includes areas of Oregon, California, Idaho, and Nevada.
Folder-Item 6.20: Topographic Map of the Cascade Range, 1951
This map includes areas of Washington and Oregon; scale 1:1,000,000.
Folder-Item 6.21: Map of the Owyhee River Area, 1959
This map includes areas of Oregon, California, Idaho, Utah, and Nevada; scale 1:1,000,000.
Folder-Item 6.22: Map of the Snake River Area, 1960
This map includes areas of Washington, Oregon, Idaho, and Montana; scale 1:1,000,000.
Folder-Item 6.23: Interim Topographic Map of Mount Baker, 1975
Depicts extent of glaciers on Mt. Baker; scale 1:24,000.

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