Ancient Mining On the Shores of Lake Superior 1
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In our eReader you can find the full English version of the book. Read Ancient Mining On the Shores of Lake Superior 1 Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Ancient Mining On the Shores of Lake Superior 1
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This rock is also visible at the heads of ravines where rivulets faU over low precipices forming small cataracts.
The first signs of ancient excavations occur near the lake level, and what is remarkable, are not in the rock, but in the sand and boulder " drift." Fig. 8.
Ancieni Pits in the Boclder Crift or Gravel, Qdincy Location.
The most capacious of these gravel pits, however, occur on a line nearly level and about 100 feet above the surface of the water.
ON THE SHORES OP LAKE SUPERIOR. 15 T...hey are partly upon the land of the Quincy Mining Company and in part on the Pewabic, a short distance east of the landing, as sliown in the sketch. Those constituting the upper series are even, broad, deep, and regular, having the appear- ance of old fortifications. They extend around the headlands of gravel, connecting adjacent ravines, as though the object was to bring Avater from the rivulets along the face of the bluff.
At the points of the ridges they are much broader and deeper than they are at the heads of the ravines.
What to read after Ancient Mining On the Shores of Lake Superior 1?
You can find similar books in the "Read Also" column, or choose other free books by Charles Whittlesey to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
This rock is also visible at the heads of ravines where rivulets faU over low precipices forming small cataracts.
The first signs of ancient excavations occur near the lake level, and what is remarkable, are not in the rock, but in the sand and boulder " drift." Fig. 8.
Ancieni Pits in the Boclder Crift or Gravel, Qdincy Location.
The most capacious of these gravel pits, however, occur on a line nearly level and about 100 feet above the surface of the water.
ON THE SHORES OP LAKE SUPERIOR. 15 T...hey are partly upon the land of the Quincy Mining Company and in part on the Pewabic, a short distance east of the landing, as sliown in the sketch. Those constituting the upper series are even, broad, deep, and regular, having the appear- ance of old fortifications. They extend around the headlands of gravel, connecting adjacent ravines, as though the object was to bring Avater from the rivulets along the face of the bluff.
At the points of the ridges they are much broader and deeper than they are at the heads of the ravines.
What to read after Ancient Mining On the Shores of Lake Superior 1?
You can find similar books in the "Read Also" column, or choose other free books by Charles Whittlesey to read onlineMoreLess
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