BULLETIN 611 SHEET No. 4 
ATES A POND li ME 
OES ATE A CRNA LEP RELI REO ET TITLE Se ET POT A 
| | Es pee oT ‘MINNESOTA - NORTH DAKOTA 
1 
Approximately 8 miles to | inch 
9 . |: fk 8 ee ee eee 
Be Patt 10 'S 20 = 2S 30Kilometers* 
Contour interval 200 feet 
ELEVATIONS IN FEET ABOVE MEAN SEA LEVEL 
The i. ti 
St. Paul, Minnesota. A 10 
The crossties on the railroads are spaged ! mile apart 
'*7O HUDSON BAY 
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GLACIAL LAKE AGASSIZ ‘ THE TIME or ITs "GREATEST EXPANSION PAlice, ee Addison 16 
THE LAKE. CAUSED B sy BLOCKADE ON THE NORT! seer WAS 700 MILES LONG 
MORE THAN 200 MILES BRO - 
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97's0 : ae : 96'30' 
ENGRAVED AND PRINTED BY THE 2:.S-GEOLOGICAL sufWE 
