Powder River Basin (WY-MT)

Survey type M-D (magnetic; collected in digital form)
Flown by Texas Instruments
Date flown 06/74
Line spacing 9.6 and 19.3 (km)
Altitude 121.9 (m) above ground
Total distance 9,948 (km)
References
Counties Big Horn - Carter - Custer - Powder River - Rosebud - Treasure - Yellowstone - Albany - Big Horn - Campbell - Converse - Crook - Goshen - Johnson - Natrona - Niobrara - Platte - Sheridan - Washakie - Weston
Overlapping surveys

Data: Magnetic, radiometric (M/R-D)