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Iowan topography in northwest Iowa, Liberty Township, Iowa, 1925

Located in Liberty Twp., middle of South line, section 34.

Gravels and till, Cherokee Township, Iowa, 1925

Located 2 miles North of Cherokee, East 1/2 section 11, Cherokee Twp.

Men on pile of boulders, Forest City township, Iowa, July 4, 1925

Forest City Twp., lane between sections 13 and 32

Boulder field in Iowan area, Williamstown, Iowa, June 19, 1926

Located 3/4 mile South of Williamstown, East side of road, near middle of line between sections 13, Richland Twp., and 18, Dresden Twp.

Iowan Drift area topography, Hazel Green Township, Iowa, June 19, 1925

Located in the south part of line between sections 28 and 29 in Hazel Green township.

Iowan Drift area topography, Boulder Township, Iowa, June 19, 1925

Located in Boulder Twp., corner of sections 1, 2, 11, and 12.

Two tills and two loesses, Iowa, June 18, 1925

Located in the west of corner of sections 20, 21, 28, and 29.

Kansan topography, Welton Township, Iowa, June 18, 1925

Located in the middle of section 4 of Welton Township.

Iowan Drift area topography, Spring Rock Township, Iowa, June 18, 1925

Located in Spring Rock Twp. on the middle of line between sections 6 and 7.

Lower end of Lake Okoboji, Lake Okoboji, Iowa, late 1890s or early 1900s

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