Description
1 map on 2 sheets :col. ;183 x 153 cm., sheets 102 x 161 cm
Depths shown by contours
“Prepared by the Geothermal Survey of North America, Subcommittee of the AAPG Research Committee.”
Bipolar oblique conic conformal proj. (E 170 — W 9/N 90 — N 6)
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