Items starting with G

Game Species

Any species of wildlife or fish that is harvested according to prescribed limits and seasons.

Gateway communities

Communities that are economically and socially interdependent on the associated public lands. Proximity to these lands contributes to the quality of life and sense of place for residents and visitors.

Geographic Information System (GIS)

A computer system capable of storing, analyzing, and displaying data and describing places on the earth's surface. GIS is both a database designed to handle geographic data as well as a set of computer operations that can be used to analyze the data. In a sense, GIS can be thought of as a higher order map.


The science that deals with the relief features of the earth's surface.

Geomorphic Processes

Processes that change the form of the earth, such as volcanic activity, running water, and glacial action.

Geophysical Exploration

Efforts to locate deposits of oil and gas resources and to better define the sub-surface.


A broad statement of a desired outcome. Goals are usually not quantifiable and may not have established time frames for achievement.

Ground Fire

A fire that burns along the forest floor and does nor affect trees with thick bark or high crowns.

Ground Water

The supply of fresh water under the earth's surface in an aquifer or in the soil.

Ground-based logging

The dragging or carrying of trees or logs for the stump to the landing using various types of self-propelled machines (e.g., tractors, skidders, forwarders).

Group selection

An uneven-aged cutting method in which small groups of trees, usually no more than two acres in size, are removed to meet a predetermined goal of size distribution and tree species in the remaining stand.


Actions or management practices that may be used to achieve desired outcomes, sometimes expressed as best management practices. Guidelines may be identified during the land use planning process, but they are not considered a land use plan decision unless the plan specifies that they are mandatory. Guidelines for grazing administration must conform to 43 CFR 4180.2.


General term covering guzzler, wildlife drinker, or tenaja. A natural or artificially constructed structure or device to capture and hold rain water, and make it accessible to small and/or large animals. Most guzzlers involve above or below ground piping, storage tanks, and valves. Tenajas are natural depressions in rock, which trap and hold water. To some tenajas, steps are sometimes added to improve access and reduce mortality from drowning.

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