areas of landslides williston west quadrangle, north dakota · areas of landslides williston west...
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Cartographic Compilat ion: E. L. Kadrmas & S.S. Kran ich
103o 45' 00"
48o 15' 00"
103o 37' 30"
103o 37' 30"103o 45' 00"48o 07' 30" 48o 07' 30"
48o 15' 00"
Areas of LandslidesWilliston West Quadrangle, North Dakota
(OTTER TAIL CR EEK) (BLACKTAIL CREEK)(BONETRAILL SE)
(TREN
TON) (WILLISTON SE)
(TREN
TON
NE)
(WILLISTON SW)
(WILL
ISTO
N EA
ST)
North Dakota Geological Survey24K: Wlst W - l
Edward C. Murphy, State GeologistLynn D. Helms, Director Dept. of Mineral Resources
Geologic Symbols
Known contact between two geologic units.
UNIT DESCRIPTIONS
QUATERNARY SYSTEM
RECENT/PLEISTOCENE
Geology Undifferentiated
T. 1 55 N.
T. 1 54 N.
R. 101 W.R. 102 W.
MN
1976 Magnetic North Declinat ion at Center of Sheet
14o
Williston West Quadrangle, North Dakota
Edward C. Murphy2012
Variable mixture of strata and deposits that have slid to the base ofsteep slopes.
Landslide DepositsQls
Landslides identified on this quadrangle were mapped from stereopairs, black and white 1:20,000 scale aerial photographs flownbetween 6-21-58 and 9-7-58. As a result these maps can be usedto identify areas that are vulnerable to slope failure, but are not anup to date assessment of all landslides for the area.
Other Features
Unpaved Road
Paved Road
US Highway(/2
0 0.5 1Miles
1:24,000Scale
Stand ard Paral lels 4 8o 07' 30" an d 48o 15' 00"
USGS 7.5 Min ute Topo graph ic Map Co ntour Interval 1 0 Feet
Lambert Conformal Conic Projection1927 No rth American Datum NGVD 1929
Road Layer Rectified to 2 003 NAIP Digi tal Orth ophoto