| Survey type |
M-Dz (magnetic; digitized from contour maps) |
| Flown by |
U.S. Geological Survey |
| Date flown |
08/55 |
| Line spacing |
0.8 (km)
|
| Altitude |
152.4 (m) above ground
|
| Total distance |
4,063 (km)
|
| References |
Kinoshita, W.T., Davis, W.E., Smedes, H.W., Nelson, W. H., 1964, Bouguer gravity, aeromagnetic, and generalized geologic map of Townsend and Duck Creek Pass quadrangles, Broadwater County, Montana; Geophysical Investigations Map 439http://ngmdb.usgs.gov/Prodesc/proddesc_3382.htm |
| Counties |
Broadwater - Gallatin - Jefferson - Lewis and Clark
|
| Overlapping surveys |
|
