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1. 1866 Trolley Map of Portland, Oregon Raster Lewis & Clark Public content

This map is an 1866 map of portland's trolley system, all centered around the Willamette River. Map was found in Portland's "Archives and Records M... Lewis & Clark College (Portland, Or.).

2. 1910 Portland development Raster Lewis & Clark Public content

This 1910 map shows Portland's quick east-side development and the beginning of south-east suburban sprawl. This map comes from the "Greater Portl... PDXScholar, Carl Abbott.

3. General Land Map 1852-South Raster Lewis & Clark Public content

Surveyor General's Office. This map shows the Portland area in 1852 as the "township south of range east of the Willamette Meridian Territory". Created by the Surveyor Genera...

4. General Land Map of Portland North 1852 Raster Lewis & Clark Public content

Surveyor General's Office. This map shows the Portland area in 1852 as the "township north of range east of the Willamette Meridian Territory". Created by the Surveyor Genera...

5. General Portland Development Plan 1912 Raster Lewis & Clark Public content

This map shows the condition of development in Portland 1912 and the plan for future development of streets, parks, and business district. This is ...

7. Hanson & Garrow's Map of Portland 1912 Raster Lewis & Clark Public content

Hanson & Garrow. This is a merged map of the north and south parts of Hanson & Garrow's map of Portland 1912, showing the Columbia River and the development of Port... University of Wisconsin Milwaukie.

8. Industrial Map of Portland 1921 Raster Lewis & Clark Public content

Commission of Public Docks. This map shows locations of industrial facilities in 1921 including ports, principal industries, railroad and street car lines, public docks, lumbe...

9. Johnson Creek Restoration Sites 1990-2014 Polygon Lewis & Clark Public content

Maya Jarrad. Johnson Creek watershed restoration project locations, areas, and attributes by primary watershed restoration agents from 1990-2014 in the Johnson ...

11. Portland 1901 Raster Lewis & Clark Public content

C.H. Crocker Co. This map shows the historic paper map published by C.H. Crocker Co. of Portland and Beaverton, Oregon. Georeferenced using Oregon North State Plan ... Harvard Geospatial Library.

12. Portland 2010 Block Groups Polygon Lewis & Clark Public content

Metro Data Resource Center. This data set contains the U.S. Census Bureau's year 2010 block group boundaries for the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statis... Metro Data Resource Center.

13. Portland 2010 Census Tracts Polygon Lewis & Clark Public content

Metro Data Resource Center. The US Census Bureau census tracts for the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statistical Area (MSA). Tract boundaries are released f... Metro Data Resource Center.

14. Portland Aerial photo 2011 Raster Lewis & Clark Public content

Oregon Metro. Aerial map or Portland metro area derived from ortho-rectified digital images, covering 602 square miles at 6 inch resolution. Map from Oregon Metr... Lewis & Clark College (Portland, Or.).

15. Portland Air Toxics Solutions Data, 2012 Polygon Lewis & Clark Public content

Oregon Department of Environmental Quality (www.deq.state.or.us) and Scotti Cosentino Reed; James D. Proctor. Data obtained from DEQ and processed by SR and JDP. "In 2009, DEQ created the Portland Air Toxics Solutions project to work with local communities to develop air toxics reduction strategies for the P...

16. Portland block plan 1909 Raster Lewis & Clark Public content

Edward H. Bennett and PDXscholar. This map is of the existing and proposed block plan in 1909, from the Greater Portland Plan. . Lewis & Clark College (Portland, Or.).

17. Portland building footprints Polygon Lewis & Clark Public content

Oregon Metro. A map of the city's building footprints, incluidng hieights obtained through LIDAR and existing footprint data. Original CRS: NAD_1983_HARN_State... Lewis & Clark College (Portland, Or.).

18. Portland Census Tracts 1970 Polygon Lewis & Clark Public content

This shapefile contains the 1970 Portland geometric census tracts. Using CRS: NAD83 Oregon North .