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Glossary <br />CULTURAL RESOURCES INVENTORY <br />CLASSES: <br />Class I. An existing data survey. This is an <br />inventory of a study azea to (])provide a <br />narrative overview of cultural resources by <br />using existing information, and (2) compile <br />existing cultural resources information, and <br />(3) compile existing cultural resources site <br />record data on which to base the development <br />of the BLM's site record system. <br />Class II. A sampling field inventory <br />designed to locate, from surface and exposed <br />profile indications, all cultural resource sites <br />within a portion of an area so that an <br />estimate can be made of the cultural <br />resources for the entire azea. <br />Class III. An intensive field inventory <br />designed to locate, from surface and exposed <br />profile indications, all cultural resource sites <br />in an area. Upon its completion, no further <br />cultural resources inventory work is <br />normally needed. <br />CUMULATIVE IMPACTS. The collective <br />and aggregate impacts of all actions <br />affecting a particulaz resource. <br />DIRECTIONAL DRILLING. Drilling <br />borehole wherein course of hole is planned <br />before drilling. Such boreholes aze usually <br />drilled with rotary equipment at an angle to <br />the vertical and are useful in avoiding <br />obstacles or in reaching side areas or mineral <br />estate beneath restricted surface. <br />DIVERSITY. The relative abundance of <br />wildlife species, plant species, communities, <br />habitats, or habitat features per unit of azea. <br />EASEMENT. Right afforded a person or <br />agency to make limited use of another's real <br />property for access or other purposes. <br />ENDANGERED SPECIES. Any species <br />which is in danger of extinction throughout <br />all or a significant portion cf its range. <br />ENVIRONMENTAL ASSF;SSMENT (EA). <br />A concise public document prepazed to <br />provide sufficient evidence and analysis for <br />determining whether to prepare an <br />environmental impact statement or a finding, <br />of no significant impact. It includes a brief <br />discussion of the need for tY~e proposal, <br />alternatives considered, environmental <br />impact of the proposed action and <br />alternatives, and a list of agf;ncies and <br />individuals consulted. <br />ENVIRONMENTAL IMPACT <br />STATEMENT (EIS). A formal public <br />document prepazed to analyse the impacts <br />on the environment of a proposed project or <br />action and released for comment and review. <br />An EIS must meet the requirements of <br />NEPA, CEQ guidelines, and directives of <br />the agency responsible for ttie proposed <br />project or action. <br />FAULT. A fracture or zone of fractures <br />along which there has been clisplaceinent of <br />the sides relative to one another pazallel to <br />the fracture. <br />FEDERAL LAND POLICY AND <br />MANAGEMENT ACT OF 1976 (FLPMA). <br />Public Law 94-579 signed by the President <br />on October 21, 1976. Establishes public land <br />policy for management of lands administered <br />by the Bureau of Land Mans€;ement. <br />FLPMA specifies several key directions for <br />the Bureau, notably (1) management on the <br />basis of multiple-use and sustrined yield, (2) <br />land use plans prepazed to guide management <br />actions, (3) public lands for the protection, <br />development, and enhancement of resources, <br />(4) public lands retained in federal ownership, <br />