(STAR KWEATHER) ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Qccl Qct Qccl Qccl Qclt Qclt Qccl Qccl Qccu Qccl Qclt Qclt Qclt Qop Qop Qcch Qcch Qclt Qclt Qccu Qclt Qclt Qop Qop Qop Qclt Qcch Qclt Qccu Qccl Qcsg Qccl Qccl Qclt Qclt Qop Qop Qclt Qop Qccl Qop Qclt Qccl Qccl Qclt Qclt Qclt Qop Qcre Qclt Qcsg Qclt Qclt Qop Qcre Qop Qb Qop Qcre Qop Qclt Qcsg Qop Qop Qcre Qop Qop Qop Qcre Qcre Qop Qop Qop Qop Qb Qclt Qop Qccu Qcre Qop Qop Qclt Qcs Qcs Qop Qop Qop Qccl Qop Qop Qcre Qop Qclt Qccl Qb Qop Qop Qop Qb Qop Qop Qclt Qclt Qccu Qop Qccu Qop Qop Qcre Qcre Qop Qop Qop Qop Qb Qclt Qop Qop Qcre Qclt Qop Qop Qop Qop Qop Qop Qop Qop Qop Qop Qcch Qcs Qcre Qcs Qop Qcre Qcre Qcre Qclt Qcre Qcre Qop Qb Qop Qclt Qcs Qop Qcre Qop Qcre Qcre Qop Qop Qop Qcre Qcre Qop Qop Qb Qccu Qcre Qop Qclt Qop Qop Qop Qcre Qcre Qop Qclt Qcre Qop Qop Qcre Qcs Qcre Qcre Qcre Qclt Qccl Qccu Qccl Qclt Qccu Qccu Qccu Qccu Qccu Qccl Qop Qccl Qccu Qclt Qccu Qccu Qct Qclt Qccl Qccu Qccu Qccu Qccl Qccu Qcch Qccl Qccu Qccu Qccu Qccu Qclt Qccu Qclt Qccu Qccu Qccu Qccu Qccu Qccu Qccl Qccu Qccu Qclt Qccl Qct Qccl Qccu Qop Qccu ! ( 20 ! ( 20 Surface Geology Sweetwater Quadrangle, North Dakota North Dakota Geological Survey 24K: Swtw - sg Edward C. Murphy, State Geologist Lynn D. Helms, Director Dept. of Mineral Resources 98 o 45 ' 00 " 48 o 15 ' 00 " (DERRIC K SW) 98 o 52 ' 30 " 48 o 15 ' 00 " (WEBSTER) (CAM P GR AF TO N) (CRAR Y) (GRA ND H AR BOR) 98 o 45 ' 00 " 48 o 07 ' 30 " 98 o 52 ' 30 " 48 o 07 ' 30 " (DEVI LS LA KE) (CRAR Y NW) Sweetwater Quadrangle, North Dakota Cartographic Compilation: Elroy L. Kadrmas MN 8 o 30 ' 1950 Magnetic North Declination at Center of Sheet COLEHARBOR GROUP LAKE SEDIMENT Sand and gravel; moderately to well sorted; plane bedded and cross-bedded. Shoreline Sediment (Holocene and Wisconsinan) Qc s Flat bedded, thinly laminated silt and clay, overlying glacial sediment. Nearshore Sediment (Holocene and Wisconsinan) Qc lt T. 1 55 N . T. 1 54 N . 0 0.5 1 Miles Scale 1:24,000 Standard Parallels 48 o 07 ' 30 " a nd 48 o 15 ' 00 " Contour Interval 5 Feet Lambert Conformal Conic Projection 1927 North American Datum NGVD 1929 Road Layer Rectified to 2003 NAIP Digital Orthophoto USGS 7.5 Minute Topographic Map Lorraine A. Manz 2007 EXPLANATION R. 64 W. R. 63 W. Borrow Area Qb OAHE FORMATION Clay, silt, and organic debris: obscurely bedded; dark colored; deposited in modern ponds and sloughs. Pond and Slough Sediment Qop QUATERNARY SYSTEM GLACIAL SEDIMENT Unsorted clay, silt, sand, gravel, and pebbles, with a few cobbles and boulders; flat to gently undulating topography; trace disintegration structures visible on air photos; local relief less than 10 feet. Collapsed Glacial Topography Qccl Unsorted clay, silt, sand, gravel, and pebbles, with abundant cobbles and boulders; undulating topography; moderately well-defined disintegration structures visible on air photos; local relief 10 to 20 feet. Collapsed Glacial Topography Qccu Ridges and hills of poorly to well-sorted sand and gravel intermixed with cobbles, boulders, and till. Crossbedding, laminae, and soft- sediment deformation structures common. Glaciofluvial material. Eskers and Kames Qcre GLACIOFLUVIAL SEDIMENT All map areas not coded are (Qop) pond and slough sediment. Flat-bedded sand and gravel deposited by glacial meltwater streams; level to gently sloping surfaces. River Sediment Qc sg Known contact between two geologic units Approximate contact between two geologic units ! ( Control Points Test holes, observation wells, and field observations. Geologic Symbols Partially buried meltwater channel Hilly surface with numerous kettles, nonintegrated drainage, and abundant ice-disintegration features; local relief commonly more than 100 feet. Collapsed Glacial Topography Qcch Glacial sediment that has been draped over glacial or preglacial sediment or rock that has been sheared up into thrust slabs or folds near the ice margin; hilly areas with intense internal linearity; local concentrations of gravel and boulders. Ice-Thrust Masses Qc t This geologic map was funded in part by the USGS National Cooperative Geologic Mapping Program. A Undul- ating Flat to undul- ating Ice- thrust Glacial Sediment R U E P Q H P River Sediment Lake Sediment Near- shore Shore- line Pond and Slough G C O P Qccu Qccl Qct Qcre Qclt Qcs Qop Sediment Origin Correlation of Map Units Outwash Eskers Hilly Qcch Qcsg 0 5 10 15 Other Features Water ! ( State Highway 20 Unpaved Road Paved Road