LOWER TULLOCK CREEK
Site # MY - 10
The site may be reached by turning off I-94 at the Bighorn Exit, and driving south on the Tullock Creek road about five miles, to the E. N. Haynie ranch. After receiving permission, drive through the barnyard toward the creek, staying on the road to the right. The road eventually fords the creek, and the site is just downstream from the ford.
This reach of Tullock Creek consists of a series of alternating pools and riffles. The pools are underlain with gravel, covered by a thin veneer of silt. Most of the gravel is on the 2-5 cm. range, with the largest cobbles over 20 cm. in diameter. Aquatic vegetation is moderate.
The banks have been trampled by cattle, but to a much lesser extent than most of the previous sites. The bank material is thick (0.5 m) sod overlying silty gravel. The banks are fairly well vegetated. Grasses on both sides are thick and green. Bank slumping is occurring. Cottonwood trees in the flood plain are severely damaged by flooding. Land use is light grazing and hay cultivation.
About 200 meters upstream from the site, the water is impounded behind a small dam, (just down stream from a gauging station) which has no apparent effect on the stream at present.
The stream channel is incised about two meters below a prominent terrace. A second, higher terrace is visible upstream.
Lower Tullock Creek (Site # MY - 10) was surveyed 15 August 1975.
Angles determined by a Brunton are followed by a (B), all others are derived from plane table data. Distances determined with a tape are followed by a (T), all others found using the alidade. The rod is touching the alidade side of the survey point, and is centered. Compass compensation is 15.5°. See Table 1.
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