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NEPA CX: 36.CFR.220.6.e.8




United States Forest Service

Document Type

Code of Federal Regulations


Geophysical Exploration, with new road construction or updrading existing roads


Geothermal Energy

Authority Text

Short-term (1 year or less) mineral, ener gy, or geophysical investigations and their incidental support activities that may require cross-country travel by vehicles and equipment, construction of less than 1 mile of low standard road, or use and minor repair of existing roads. Examples include but are not limited to: (i) Authorizing geophysical investigations which use existing roads that may require incidental repair to reach sites for drilling core holes, temperature gradient holes, or seismic shot holes; (ii) Gathering geophysical data using shot hole, vibroseis, or surface charge methods;; (iii) Trenching to obtain evidence of mineralization; (iv) Clearing vegetation for sight paths or from areas used for investigation or support facilities; (v) Redesigning or rearranging surface facilities within an approved site; (vi) Approving interim and final site restoration measures; and (vii) Approving a plan for exploration which authorizes repair of an existing road and the construction of 1/3 mile of temporary road; clearing vegetation from an acre of land for trenches, drill pads, or support facilities.

NEPA Documents That Include 36.CFR.220.6.e.8