. The Vermilion iron-bearing district of Minnesota : with an atlas . extreme northeastern portion of Minnesota, including portionsof St. Louis, Lake, and Cook counties. The district has an area ofapproximately 1,000 square miles. It is a narrow belt extending east-northeast from near the west end of Vermilion Lake, in longitude 92° 30west from Greenwich, on the west, to the vicinity of Gunflint Lake, on theinternational boundary, on the east, in about longitude 90^ 45 west fromGreenwich. The district lies between 47° 15 and 48° 15 north attains its maximum width at the west, where
. The Vermilion iron-bearing district of Minnesota : with an atlas . extreme northeastern portion of Minnesota, including portionsof St. Louis, Lake, and Cook counties. The district has an area ofapproximately 1,000 square miles. It is a narrow belt extending east-northeast from near the west end of Vermilion Lake, in longitude 92° 30west from Greenwich, on the west, to the vicinity of Gunflint Lake, on theinternational boundary, on the east, in about longitude 90^ 45 west fromGreenwich. The district lies between 47° 15 and 48° 15 north attains its maximum width at the west, where it is about 18 miles wide,and gradually narrows eastward, until at Gunflint Lake its minimum widthis 2 miles. The geographic relations of the Vermilion iron-bearing districtof Minnesota to the other iron-bearing districts of the Lake Superior regioncan be seen on PI. I. The western limit of the district as given on the map (92° 30) is purelyarbitrary. West of this the country is heavily drift covered and timbered, and U, S- GEOLOGICAL SURVEY MONOGRAPH XLV PL I.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectgeology, bookyear1903
