経緯度(W 1130「ウ」--W 1040「ウ」/N 490「ウ」--N 450「ウ」)
一般注記Contour intervals 500 and 1000 feet
Includes bibliography, text and location map on sheet
Physical description for original version: 1 map ; 45 x 68 cm., folded in envelope 24 x 30 cm
原資料等に関する注記原資料の出版事項: Helena, Mont. ; Lakewood, CO : The Survey : For sale by the Open-File Services Section, Western Distribution Branch, USGS, 1982
SUPTDOC番号: I 19.42/4: 82-4029