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' Legend b Description for <br />Land Use Map <br />A INDUSTRIAL <br />Surface structures associated with mining operations <br />are included in this category. Such structures and <br />equipment range from loading devices and trucks to stock- <br />piles, storage sheds, and processing facilities. <br />B Cropland ~ Pasture <br />The several components of Cropland and Pasture now used <br />for agricultural statistics include: cropland harvested; <br />cultivated summer fallow and idle cropland; land on which <br />crop failure occurs; cropland in soil improvement grasses <br />and legumes; cropland used only for pasture in rotation <br />with crops; and pasture on land more or less permanently <br />used for that purpose. From imagery alone, it generally is <br />not possible to make a distinction between Cropland and <br />Pasture with a high degree of accuracy and uniformity, let <br />alone a distinction among the various components of Cropland. <br />Moreover, some of the components listed represent the <br />condition of the land at the end of the growing season <br />and will not apply exactly to imagery taken at other times <br />of the year. They will, however, be a guide to identification <br />of Cropland and Pasture. Grazing activities generally <br />occur on land where crop production or intensive pasturing <br />has ceased, for any of a variety of reasons, and which has <br />grown up in brush. Such brushlands often are used for grazing, <br />somewhat analogous to the extensive use of rangelands in the <br />West. <br />C Other Agricultural Land <br />Other land uses typically associated with the other <br />categories of Agricultural Land are the principal components <br />of the Other Agricul[ural Land category. They include farm- <br />steads, holding areas for livestock, farm lanes and roads, <br />ditches and canals, small farm ponds, and similar uses. <br />Such occurrences generally are quite small in area and often <br />uninterpretable by use of high-altitude data. Even when they <br />are interpretable from such data, it may not be feasible to <br />map them at small presentation scales, which generally <br />results in their inclusion with adjacent agricultural use <br />areas. This category is also for aggregating data for land <br />uses derived at more detailed levels of classification. <br />* Much (if not all) of the information presented in this section <br />was copied from the Pittsburg b Midway Coal Mining Company <br />permit application, specifically without their knowledge or <br />permission. <br />1-~ <br />~ Ds/~8~B1 <br />13.2. <br />