Excerpt from Oil and Gas Fields of the Western Interior and Northern Texas Coal Measures, and of the Upper Cretaceous and Tertiary of the Western Gulf Coast Location of the Coal Measure mama - The rocks of Coal Measure age which constitute the coal fields of the United States lying between the Mississippi River and the Rocky Mountains outcrop in two areas. The larger is known as the Western Interior coal field. It extends from southern Iowa through northwestern Missouri, the southeastern portion of Nebraska, and the eastern part of Kansas into eastern Oklahoma, Indian Territory, and the western part of Arkansas. It is bordered on the south by the Arbuckle and Ouachita mountains. To the south of the Arbuckle Mountains, in Indian Territory, and extend ing into Texas beyond the Colorado River, is the smaller area, known as the Northern Texas coal field. The southern border of this field is the mountainous region of central Texas. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.