Upper Cretaceous-Paleocene sequence, Bug Creek area, northeastern Montana
The area described here is in McCone County, Montana, approximately 100 mi (160 km) northwest of Glendive and 40 mi (64 km) south of Glasgow, on the east side of the Big Dry Arm of the Fort Peck Reservoir. It is located on the Jordan 1:250,000-scale map, the Fort Peek Lake East 1:100,000-scale map, and the Bug Creek 1:24,000-scale topographic map. The Bug Creek area (Fig. 1) is reached by proceeding south on Montana 24 for 24 mi (39 km) from the Fort Peck Dam or north 25 mi (40 km) from the intersection of Montana 200 with Montana 24. At this point a dirt road heads due west for 2.5 mi (4 km), then swings north at the rim of a mesa, and then swings south to the crossing of Bug Creek. The dirt road is passable by any vehicle when dry; four-wheel drive is required when the road is wet. The dirt access road is about 2.5 mi (4 km) south of the crossing of Montana 24 over the South Fork of Rock Creek and 5.5 mi (8 km) south of the road sign to Rock Creek State Park. More than 2 mi (3 km) west of Montana 24, the land is part of the Charles M. Russell National Wildlife Range. Much of the other land is controlled by the U.S. Bureau of Land Management (BLM); some is privately owned. Collection of vertebrate fossils on federal land is by permit only. No permission is required to examine exposures on federal or state land;
Figures & Tables
Rocky Mountain Section of the Geological Society of America
One of six volumes generated by each GSA section for the Decade of North American Geology (DNAG) project, this Centennial Field Guide contains descriptions of 100 sites or site clusters representing outstanding geologic locations in northern Arizona, Colorado, Idaho, Montana, North Dakota, New Mexico, South Dakota, Utah, Wyoming, and Alberta.