102 
IOWA ACADEMY OF SCIENCE Vol. XXIV, 1917 
The mound is a kame, which signifies that it is of glacial origin. 
Karnes are hills and ridges of stratified drift deposited in con- 
nection with glaciers at the mouths of ice tunnels or ice channels 
and in the re-entrant angles of the edge of the ice. They are 
associated in many places with unstratified drift deposited at the 
terminus of a glacier, or at its edge, while it was retreating. 
Ocheyedan mound was formed during the recession of the Wis- 
consin ice sheet, which invaded our state many thousands of 
years ago. 
The esthetic value of such beautiful and interesting geological 
phenomena as Ocheyedan mound should be fully appreciated by 
Pig. 2a. View of Ocheyedan Mound from the southwest. 
the citizens of the state, and every effort should be made to pre- 
vent their destruction. Already Ocheyedan mound has been 
somewhat marred by the removal at its summit of sand and 
gravel which was used for commercial purposes. To be sure, the 
mound is valuable for the many thousands of tons of material 
that might be taken from it to be used for roadmaking or other 
purposes, but of far greater value is it to the state as a beauty 
spot, a landmark, which should be conserved for future genera- 
tions just as zealously as we are wont to conserve our material 
resources. 
Department of Geology, 
The State University. 
