DNR Aerial Photography Collections: Table Key
- Column "Org_By" (photo collection organized by...)
- CT - county
- PS - project site
- USGS - USGS quadrangle
- C - coastline
- O - other
- Column "Photos"
- 9P - 9 inch prints
- 9T - 9 inch transparencies
- 35 - 35 mm slides
- O - other
- BW - black and white
- CL - color
- CI - color IR
- Column "Rep-Cov" (Repeat coverage)
- A - annual
- S - semiannual
- OC - occasional
- Column "Area" (Area of collection)
- SW - statewide
- CO - county
- Quad - USGS quadrangle
- PJS - project site
- CL - coastline
- O - other
- Column "Avail." (Availability
- OU - office use
- P - public
- OG - other government
This clearinghouse is maintained by the Illinois State Geological Survey.
Illinois Department of Natural Resources |
State of Illinois
