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General Information

  • Title: Geology of the Three Forks quadrangle, Montana with sections on petrography of igneous rocks
  • Author(s): Robinson, G.D., and Barnett, H.F.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Professional Paper 370
  • Publication Date: 1963
  • Map Scale: 1:48,000
  • Cross Section: Yes
  • North Latitude: 46° 0' 0" N (46.0000)
  • South Latitude: 45° 45' 0" N (45.7500)
  • East Longitude: 111° 30' 0" W (-111.5000)
  • West Longitude: 111° 45' 0" W (-111.7500)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.