1974 Lake County Aerial

This four foot pixel resolution black and white aerial photography was flown between October 2 and October 10, 1974, at a capture scale of 1": 3,333, flying at an approximate altitude of 20,000 feet. Its intended usage scale for viewing is 1 inch = 400 feet. The photography has been orthorectified to meet National Map Accuracy Standards for its capture scale.The black and white photography is of good quality, although the images exhibit some scratches from the original negatives. The date of the flight means that most trees have fully leaf-out canopies, which obscures some ground features. This flight took place during a period of high population growth. The census population of Lake County was 382,638 in 1970 and 440,372 in 1980, a 15% increase; this photography documents land use in the middle of that decade.

Data and Resources

Field Value
accessLevel public
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identifier https://www.arcgis.com/home/item.html?id=ec7dd96ea38b4399a0cb5be9be47eca8
issued 2018-02-01T19:59:55.000Z
landingPage https://data-lakecountyil.opendata.arcgis.com/documents/lakecountyil::1974-lake-county-aerial
license https://www.arcgis.com/sharing/rest/content/items/89679671cfa64832ac2399a0ef52e414/data
metadata_type geospatial
modified 2022-03-23T20:06:56.000Z
old-spatial -88.2150,42.1580,-87.7810,42.4930
publisher Lake County Illinois GIS
resource-type Dataset
source_datajson_identifier true
source_hash 605c3356a7ea0f9f846d287a482c54b32e84b8e9
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-88.2150, 42.1580], [-88.2150, 42.4930], [-87.7810, 42.4930], [-87.7810, 42.1580], [-88.2150, 42.1580]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • 1974
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • aerial-photography
  • air-imagery
  • air-photo
  • color-aerial-imagery
  • digital-orthoimagery
  • digital-orthophoto
  • digital-orthorectified-imagery
  • high-resolution-orthoimagery
  • historic-aerial-imagery
  • imagery
  • lake-county-illinois
  • orthoimagery
  • orthophoto
  • orthophotography
  • satellite-imagery
isopen False
license_id other-license-specified
license_title other-license-specified
maintainer LakeCounty_Illinois
maintainer_email gis@lakecountyil.gov
metadata_created 2025-09-23T20:09:02.422243
metadata_modified 2025-09-23T20:09:02.422249
notes This four foot pixel resolution black and white aerial photography was flown between October 2 and October 10, 1974, at a capture scale of 1": 3,333, flying at an approximate altitude of 20,000 feet. Its intended usage scale for viewing is 1 inch = 400 feet. The photography has been orthorectified to meet National Map Accuracy Standards for its capture scale.The black and white photography is of good quality, although the images exhibit some scratches from the original negatives. The date of the flight means that most trees have fully leaf-out canopies, which obscures some ground features. This flight took place during a period of high population growth. The census population of Lake County was 382,638 in 1970 and 440,372 in 1980, a 15% increase; this photography documents land use in the middle of that decade.
num_resources 2
num_tags 24
title 1974 Lake County Aerial