Helium soil-gas concentrations in the Torrington, Newcastle, Gillette, Wyoming and Ekalaka, Montana 1 degree x 2 degrees quadrangles; data from a reconnaissance survey
Open-File Report 80-452
By:
G. Michael Reimer
,
D.G. Murrey
,
and Josh M. Been
Helium soil-gas concentrations in the Torrington, Newcastle, Gillette, Wyoming and Ekalaka, Montana 1 degree x 2 degrees quadrangles; data from a reconnaissance survey