. Bulletin. Natural history; Natural history. LUCE: SURVEY OF THE KASKASKIA RIVER FISHERY 75 that part of the profile represented by dotted lines were calculated from the railroad elevations on the base map of Illinois prepared by the Illinois State Geological Survey in cooperation with the United States Geological Survey. If we consider the top of Yankee Ridge as our starting point, the stream drops 140 feet during the first 2 miles of its course. Where it leaves the Mahomet quadrangle, at a point about 12 miles from its source, its elevation is about 670 feet—a fall of about 1^0 feet from th
. Bulletin. Natural history; Natural history. LUCE: SURVEY OF THE KASKASKIA RIVER FISHERY 75 that part of the profile represented by dotted lines were calculated from the railroad elevations on the base map of Illinois prepared by the Illinois State Geological Survey in cooperation with the United States Geological Survey. If we consider the top of Yankee Ridge as our starting point, the stream drops 140 feet during the first 2 miles of its course. Where it leaves the Mahomet quadrangle, at a point about 12 miles from its source, its elevation is about 670 feet—a fall of about 1^0 feet from the highest point in the headwaters. From this point to the mouth of the river the fall 'f »j1 « X. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
