Bologna Basin Oregon Historical topographic map, 1:24000 scale, 7.5 X 7.5 Minute, Year 1990

~ Bologna Basin OR topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1990, updated 1990

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Bologna Basin, Oregon, USGS topographic map dated 1990.

Includes geographic coordinates (latitude and longitude). This topographic map is suitable for hiking, camping, and exploring, or framing it as a wall map.

Printed on-demand using high resolution imagery, on heavy weight and acid free paper, or alternatively on a variety of synthetic materials.

Topos available on paper, Waterproof, Poly, or Tyvek. Usually shipping rolled, unless combined with other folded maps in one order.


  • Product Number: USGS-5416854
  • Free digital map download (high-resolution, GeoPDF): Bologna Basin, Oregon (file size: 12 MB)
  • Map Size: please refer to the dimensions of the GeoPDF map above
  • Weight (paper map): ca. 55 grams
  • Map Type: POD USGS Topographic Map
  • Map Series: HTMC
  • Map Verison: Historical
  • Cell ID: 72285
  • Scan ID: 279087
  • Imprint Year: 1990
  • Woodland Tint: Yes
  • Aerial Photo Year: 1984
  • Edit Year: 1990
  • Field Check Year: 1987
  • Datum: NAD27
  • Map Projection: Lambert Conformal Conic
  • Provisional map: Yes
  • Map published by United States Geological Survey
  • Map Language: English
  • Scanner Resolution: 600 dpi
  • Map Cell Name: Bologna Basin
  • Grid size: 7.5 X 7.5 Minute
  • Date on map: 1990
  • Map Scale: 1:24000
  • Geographical region: Oregon, United States

Neighboring Maps:


All neighboring USGS topo maps are available for sale online at a variety of scales.


Spatial coverage:

Topo map Bologna Basin, Oregon, covers the geographical area associated the following places:

- West Fork Cochran Creek - Alkali Flats - Rail Canyon - Thorn Spring - Rudio Creek - Thorn Spring Butte - Cochran Creek - Bologna Basin - Tommy Cork Spring - Putnam Spring - Negro Knob Trail (historical) - Bologna Spring - Ant Hill - Portuguese Canyon - Rains Canyon - Negro Knob - Gilmore Creek - Neal Dam - Waller Reservoir Number Four - Birch Creek - Dry Creek - Wagon Road Gulch - Cupper Canyon - Big Bend

  • Map Area ID: AREA44.87544.75-119.625-119.5
  • Northwest corner Lat/Long code: USGSNW44.875-119.625
  • Northeast corner Lat/Long code: USGSNE44.875-119.5
  • Southwest corner Lat/Long code: USGSSW44.75-119.625
  • Southeast corner Lat/Long code: USGSSE44.75-119.5
  • Northern map edge Latitude: 44.875
  • Southern map edge Latitude: 44.75
  • Western map edge Longitude: -119.625
  • Eastern map edge Longitude: -119.5

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