GENERAL36676

• Permit No: C1980007
• IBM Index Class Name: General Documents
• Doc Date: 3/16/2006
• Doc Name: Final EIS & Record of Decision for the Dry Fork Lease 2nd Half
• From: US Forest Service
• To: DMG
• Permit Index Doc Type: Other Permits
• Media Type: D
• Archive: No

Chapter 7
composition and grain size. Generally, the
description of the physical character of a rock.
livestock -Foraging animals of any kind that are
kept or raised for use or pleasure.
longwall panel -The area of coal exposed for
development.
longwall method (longwall mining) -One of two
major underground coal mining systems currently
in use. It employs a rotating drum, which is pulled
mechanically back and forth across a face of coal
that is usually several hundred feet long. The
loosened coal falls onto a conveyor for removal
from the mine. longwall operations include a
hydraulic roof support system that advances as
mining proceeds, allowing the roof to fall in a
controlled manner in areas already mined. Where it
can be used, longwall generally allows the recovery
of higher percentages of coal in an efficient manner,
at costs that are usually less than those of other
underground methods.
management indicator species (MIS) - 1, A
species whose condition can be used to assess the
impacts of management actions on a particular area.
2. A species whose population changes are believed
to indicate the effects of management activities, and
is monitored to track population numbers and
habitat conditions, as a way of monitoring
biodiversity,
mass movement -The down-slope movement of
large masses of earth material by the force of
gravity. Also referred to as mass wasting or a
landslide.
Material damage -the term `material damage' is
used in the Surface Mining, Control and
Reclamation Act of 1977 (30 CFR §§ 784.20 and
817.121) to mean:
(a) Any functional impairment of surface lands,
features, structures or facilities;
(b) Any physical change that has a significant
adverse impact on the affected land's capability to
support any current or reasonably foreseeable uses
or causes significant loss in production or income;
or
Glossary and Acronyms
(c) Any significant change in the condition,
appearance, or utility of any structure or facility
from its pre-subsidence condition.
maximum economic recovery -The requirement
that, based on standard industry operating practices,
all profitable portions of a leased Federal coal
deposit must be mined. MER determinations will
consider existing proven technology; commercially
available and economically feasible equipment;
coal quality, quantity, and marketability; safety,
exploration, operating, processing, and
transportation costs; and compliance with
applicable laws and regulations [see 43 CFR
3480.0-5(a)(24)].
methane -A colorless, odorless, and inflammable
gas; the simplest hydrocarbon; chemical formula =
CHa. It is the principal constituent of natural gas
and is also found associated with crude oil and coal.
middleground -The zone between the foreground
and the background in a landscape, or the area
within % mile to 4 miles of the observer.
mineable coal -Coal that can be economically
mined using present day mining technology.
mining permit -A permit to conduct surface coal
mining and reclamation operations issued by the
state regulatory authority pursuant to a state
program or by the Secretary pursuant to a Federal
program (see 30 CFR 701.5).
mitigation -An action to avoid, minimize, reduce,
eliminate, replace, or rectify the impact of a
management practice.
NFSR-National Forest System Road - A road
wholly or partly within, or adjacent to, and serving
National Forest System land and necessary for the
protection, administration and use of the National
Forest System and the use and development of its
resources.
National Register of Historic Places (NRHP) -
The official Federal list of districts, sites, buildings,
structures, and objects significant in American
history, architecture, archaeology, engineering, and
culture.
Dry Fork Lease-By-Application FEIS 7-5