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PEN BRANCH. Pen Branch rises twelve miles south of Guthrie and seven miles east of Haystack Mountain in south central King County (at 33°28' N, 100°20' W) and runs east for fifteen miles through an area of rolling to steep slopes in isolated oil and ranch land before reaching its mouth on North Croton Creek (at 33°25' N, 100°07' W). The locally stony shallow clayey and sandy loams support juniper, cacti, and sparse grasses. Fed by numerous springs, Pen Branch was a large flowing stream in earlier times. In 1854 surveyor Randolph B. Marcy commented that the branch was "clear, deep, and covered with water grasses," and had a considerable salt content. By the early 1970s two small reservoirs, including Parramore Lake, had been built along the creek. Ten years later the branch was mostly dry.

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The following, adapted from the Chicago Manual of Style, 15th edition, is the preferred citation for this article.

Handbook of Texas Online, "Pen Branch," accessed November 19, 2017,

Uploaded on June 15, 2010. Published by the Texas State Historical Association.