Northern Ohio West (OH)

Survey type M-D (magnetic; collected in digital form)
Flown by Div.Tech
Date flown 04/81-05/81
Line spacing 2.41 (km)
Altitude 548.64 (m) by barometer measurement
Total distance 9,503 (km)
References
Counties Adams - Allen - DeKalb - Jay - Steuben - Hillsdale - Lenawee - Monroe - Allen - Auglaize - Crawford - Defiance - Erie - Fulton - Hancock - Hardin - Henry - Logan - Lucas - Marion - Mercer - Morrow - Ottawa - Paulding - Putnam - Sandusky - Seneca - Union - Van Wert - Williams - Wood - Wyandot
Overlapping surveys

Data: Magnetic (M-D)