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Glossary and Acronyms Chapter 7 native species -Any species native to a given land or water area by natural occurrence. obliteration - In engineering, actions taken on a roadway or motorized trail over which travel has been and will continue to be denied. The entrance is obscured, and the wheel tracks or pathway is no longer continuous and suitable for travel. Maintenance needs have been eliminated, and it has been removed from the transportation or trail system inventory. off-highway vehicle (OHV) - Any motorized recreational vehicle capable of being operated off an established road. This includes all-terrain vehicles, motorcycles, rail buggies and full sized pickups or similar vehicles. See all-terrain vehicle. outcrop -A rock formation that appears at or near the surface; the intersection of a rock formation with the surface. overburden -Material of any nature, consolidated or un-consolidated, that overlies a coal or other useful mineral deposit, excluding topsoil. overstory - 1. The trees in a two- or multi-layered forest stand that provides the upper crown cover. 2. A more or less continuous cover of branches and foliage formed collectively by the upper portion of the vegetation structure. panel -The area of coal extracted by a longwall face. perennial stream -A stream or part of a stream [hat flows continuously during the calendar year as a result of ground-water discharge or surface runoff. permeability -The ability of rock or soil to transmit a fluid. permit application package -A proposal to conduct surface coal mining and reclamation operations on Federal lands, including an application for a permit, permit revision, or permit renewal and all the information required by SMCRA, the applicable state program, any applicable co-operative agreement, and all other applicable laws and regulations including, with respect to Federal leased coal, the Mineral Leasing Act and its implementing regulations. permit area -The area of land, indicated on the approved map submitted by the operator with his or her application, required to be covered by the operator's performance bond under the regulations at 30 CFR Part 800 and which shall include the area of land upon which the operator proposes to conduct surface coal mining and reclamation operations under the permit, including all disturbed areas (see 30 CFR 701.5). porosity -The ratio of the volume of voids in the soil to the total volume of the mass or solids, expressed as a percentage. proposed species -Species proposed for Federal listing as threatened or endangered under provisions of the Endangered Species Act of 1973. raptor -Predatory bird, such as an eagle, falcon, hawk, owl, or vulture. reach -stream segment recharge -The processes by which groundwater is absorbed into a zone of saturation. reclamation -Rehabilitation of a disturbed area to make it acceptable for designated uses. This normally involves re-grading, replacement of topsoil, revegetation and other work necessary to restore the disturbed area for post-mining use. record of decision (ROD) -A document separate from, but associated with, an environmental impact statement that publicly and officially discloses the responsible official's decision on the Proposed Action (see 40 CFR 1505.2). recoverable coal -The amount of coal that can actually be recovered for sale from the demonstrated coal reserve base. riparian area-Geographically delineable areas with distinctive resource values and characteristics that are comprised of aquatic and riparian ecosystems (FSM 2526.05). riparian ecosystem-A transition between the aquatic ecosystem and the adjacent terrestrial ecosystem; identified by soil characteristics or distinctive vegetation communities that require free or unbound water (FSM 2526.05). In riparian 7-6 Dry Fork Lease-By-Application FEIS