| Survey type | M-Dz (magnetic; digitized from contour maps) |
|---|---|
| Flown by | U.S. Geological Survey |
| Date flown | 05/60-07/60 |
| Line spacing | 1.6 (km) |
| Altitude | 152.4 (m) above ground |
| Total distance | 19,312 (km) |
| References | |
| Counties | Boone - Bureau - Cook - DeKalb - DuPage - Ford - Grundy - Iroquois - Kane - Kankakee - Kendall - Lake - La Salle - Lee - Livingston - McHenry - McLean - Marshall - Ogle - Putnam - Will - Winnebago - Woodford - Benton - Lake - Newton - Kenosha - Rock - Walworth |
| Overlapping surveys |
| Metadata | Questions & Answers - Outline - Parseable text - XML |
|---|---|
| Download | IL0348.zip |
