New Mexico Coop Area C (NM)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by U.S. Geological Survey
Date flown 11/75
Line spacing 1.6 (km)
Altitude 3353 (m) by barometer measurement
Total distance 2,510 (km)
References
Counties Archuleta - Conejos - Rio Arriba - Taos
Overlapping surveys

Data: Magnetic (M-Dz)