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Ridges of loess over glacial drift comprising the Missouri River bluffs seven miles north of Council Bluffs, Crescent Township, Sec. 26. Steep ungullied slopes marked by "cat-steps." Iowa-Omaha quadrangle. Pottawattamie County, Iowa. September 9, 1919.
C.M.& St. P. Railway cut five miles east of Delmar Junction. Branching log of wood embedded in silt beneath pre-Kansan till in lower part of section at left shown in photo 838. The loose pieces were gathered from other places in the silt and the overlying till. Waterford Township, NE1/4, Sec. 8, T. 83 N., R. 4 E. Clinton County, Iowa. October 10, 1914.
Branching erosion lines near head of valley. Mature erosion on Kansan drift. No loess. Weathered drift mantled with gray "gumbo." Tributary to Platte River. Four-miles southeast of Creston. T. 72 N., R. 30 W. Union County, Iowa. September 30, 1914.
Panorama with image 956. [View] looking north along bluffs of Missouri River near C.& NW. Railway, north of Council Bluffs, Iowa, near Iowa Lake, Garner Township, Sec. 13. Bluffs 300 feet high, narrow crested and principally loess (buff over reddish) underlain by glacial drift. The dissected bench-like lower slope is loess underlain by Kansan till, Aftonian gravel and Nebraskan till. Alluvial flat at left and silt bars in river at low water. Iowa-Omaha quadrangle. Pottawattamie County, Iowa. September 8, 1919.
Street cut in point of bluff at Missouri Valley, Iowa, north of Third Ward School. It shows 50-60 feet of loess exposed in nearly vertical face for several years. Bluff at left facing Missouri River exposes gravelly drift below bottom of this cut, which is about 50 feet above First Street and St. Clair on the flat. Harrison County, Iowa. No date.
Mature erosion on Kansan drift. Loess thin on weathered drift. Relief 100-150 feet. Four miles southeast of Riverside, three miles west of Iowa River. Highland Township, north line, sec. 4, T. 76 N., R 6 W. Washington County, Iowa. October 2, 1914.
Panorama with images 838 and 839. C.M. & St. P. Railway cut five miles east of Delmar Junction, south side of cut. 1. Buff loess, leached 10+/- feet - 5-15 feet; 2. Red-brown to rusty buff Kansan till leached 6-7 feet - 15-18 feet; 3. Dense, dark, gray, calcareous Kansan till, rusty along joints - 6+/- feet; 4. Aftonian gravel and sand, cross- bedded, partly clean gray, partly orange to brown, cemented with lime at top - 3-10 feet; 5. Dense, slate-colored, jointed, calcareous, pre- Kansan till, upper one-foot lighter gray, much included wood - 8-12 feet; 6. Slate-colored, fine laminated calcareous silt, much disturbed at top by overriding of glacier, much wood included - 10 +/- feet. (Note: The two horizontal benches...
Cut edge of wooded bench at foot of bluff near Iowa Lake and C.& NW. Railway, north of Council Bluffs, Garner Township, Sec. 13. Shows leg bone of bison in shell-bearing gray clay, in hole dug for its removal, 6 feet below top of edge of bench. Bone-bearing and shell bearing clay, cut edge of bench shown in image 957. Iowa-Omaha quadrangle. Pottawattamie County, Iowa. September 8, 1919.
Panorama with image 852. Three miles east of Manning, C.M. & St. P. Railway cut (north side), showing: relations of the loess (1) to the core of the spur of the ridge composed of (2) calcareous till (Kansan?). Warren Township, NW1/4, Sec. 14. Carroll County, Iowa. June 10, 1915.
Panorama with image 855. One and one-half miles east of Manning. North side of C.M. & St. P. Railway cut east of viaduct. 1. Loess - 8- 15 feet; 2. Yellow calcareous till (Kansan) - 0-15 feet; 3. In center of view is stratified sand; 4. Dense gray, non-calcareous gumbo - 0-15 feet. Upper surface of No.4 is very uneven as though eroded or pushed up by overriding of the later ice. Warren Township, W1/2, Sec. 15. Carroll County, Iowa. June 10, 1915.
Panorama with images 838 and 840. C.M. & St. P. Railway cut five miles east of Delmar Junction, south side of cut. 1. Buff loess, leached 10+/- feet - 5-15 feet; 2. Red-brown to rusty buff Kansan till leached 6-7 feet - 15-18 feet; 3. Dense, dark, gray, calcareous Kansan till, rusty along joints - 6+/- feet; 4. Aftonian gravel and sand, cross- bedded, partly clean gray, partly orange to brown, cemented with lime at top - 3-10 feet; 5. Dense, slate-colored, jointed, calcareous, pre- Kansan till, upper one-foot lighter gray, much included wood - 8-12 feet; 6. Slate-colored, fine laminated calcareous silt, much disturbed at top by overriding of glacier, much wood included - 10 +/- feet. (Note: The two horizontal benches...
Panorama with images 844 and 845. C.M. & St. P. Railway cut (north side) 1 1/2 miles west of Manning, showing: 1. Buff loess - 10-15 feet; 2. Buff calcareous till (Kansan?) - 10 feet; 3. Gray pebbly clay, may be lower part of No. 2 - 3 feet; 4. Gray pebble-less laminated clay with black carbonaceous soil band - 0-1 feet; 5. Dense gray, non- calcareous gumbo, containing small pebbles - 12-15 feet; 6. Rusty yellow till (pre-Kansan?) - 15 feet. Warren Township, NW1/4, Sec. 18. Carroll County, Iowa. June 8, 1915.
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