LOGAN. | The Upper Cretaceous. 
3d outcroop— 
7. Soil 5 feet (top). 
6. Sandy shale, 10 feet. 
1 
Sew oO - 
4th 
2 
. Gypsum, 3 inches to 24 feet. 
. Red sandstone 8 inches. 
. Gypsum i} inches. 
. Gypsiferous shales, 10 feet. 
. Saliferous shale? (bottom). 
outcrop— 
3. Soil, 5 feet (top). 
2. Gypsiferous shale, 10 feet. 
1 
. Saliferous shale? (bottom). 
Rock Creek Section: 
1st 
4, 
3 
2 
it 
outcrop— 
Alluvium, 10 feet (top). 
. Lincoln marble and shaie, 5 feet. 
. Red sandstone, 5 feet. 
. Saliferous shale ? (bottom). 
2d outerop— 
4, 
3 
2. Sandstone in thin layers, with sand 10 feet. 
J 
Soil, 6 feet (top). 
. Gravel rock, 1 foot. 
. Saliferous shale ? (bottom). 
Little Timber Section: 
Ist outcrop— 
8. Soil, 15 feet (top). 
7. Red sandstone, sand and shale, 10 feet. 
6. Shale, gypsiferous, 15 feet. 
5. Shell bed, Leptosolen conradii, 6 inches. 
4, Glue shale, 8 feet. 
>}. Bituminous shale, 4 inches. 
2. Lignite, 26 inches. | 
1. Gray sandstone? (bottom). 
2d outcrop— 
4 
3 
. Soul, 10 feet (top). 
. Shale? 
211 
