US Code

Public Law 119-73 (01/23/2026)

16 U.S.C. § 539r

Rocky Mountain Front Conservation Management Area and wilderness additions

(a)

Definitions

In this section:
(1)

Conservation Management Area

The term “Conservation Management Area” means the Rocky Mountain Front Conservation Management Area established by subsection (b)(1)(A).

(2)

Decommission

The term “decommission” means—
(A)
to reestablish vegetation on a road; and
(B)
to restore any natural drainage, watershed function, or other ecological processes that are disrupted or adversely impacted by the road by removing or hydrologically disconnecting the road prism.
(3)

District

The term “district” means the Rocky Mountain Ranger District of the Lewis and Clark National Forest.

(4)

Map

The term “map” means the map entitled “Rocky Mountain Front Heritage Act” and dated .

(5)

Nonmotorized recreation trail

The term “nonmotorized recreation trail” means a trail designed for hiking, bicycling, or equestrian use.

(6)

Secretary

The term “Secretary” means—
(A)
with respect to land under the jurisdiction of the Secretary of Agriculture, the Secretary of Agriculture; and
(B)
with respect to land under the jurisdiction of the Secretary of the Interior, the Secretary of the Interior.
(7)

State

The term “State” means the State of Montana.

(b)

Rocky Mountain Front Conservation Management Area

(1)

Establishment

(A)

In general

Subject to valid existing rights, there is established the Rocky Mountain Front Conservation Management Area in the State.

(B)

Area included

The Conservation Management Area shall consist of approximately 195,073 acres of Federal land managed by the Forest Service and 13,087 acres of Federal land managed by the Bureau of Land Management in the State, as generally depicted on the map.

(C)

Incorporation of acquired land and interests

Any land or interest in land that is located in the Conservation Management Area and is acquired by the United States from a willing seller shall—
(i)
become part of the Conservation Management Area; and
(ii)
be managed in accordance with—
(I)
in the case of land managed by the Forest Service—
(aa)
16 U.S.C. 552 the Act of (commonly known as the “Weeks Law”) ( et seq.); and
(bb)
any laws (including regulations) applicable to the National Forest System;
(II)
43 U.S.C. 1701 in the case of land managed, by the Bureau of Land Management, the Federal Land Policy and Management Act of 1976 ( et seq.);
(III)
this subsection; and
(IV)
any other applicable law (including regulations).
(2)

Purposes

The purposes of the Conservation Management Area are to conserve, protect, and enhance for the benefit and enjoyment of present and future generations the recreational, scenic, historical, cultural, fish, wildlife, roadless, and ecological values of the Conservation Management Area.

(3)

Management

(A)

In general

The Secretary shall manage the Conservation Management Area—
(i)
in a manner that conserves, protects, and enhances the resources of the Conservation Management Area; and
(ii)
in accordance with—
(I)
the laws (including regulations) and rules applicable to the National Forest System for land managed by the Forest Service;
(II)
43 U.S.C. 1701 the Federal Land Policy and Management Act of 1976 ( et seq.) for land managed by the Bureau of Land Management;
(III)
this subsection; and
(IV)
any other applicable law (including regulations).
(B)

Uses

(i)

In general

The Secretary shall only allow such uses of the Conservation Management Area that the Secretary determines would further the purposes described in paragraph (2).

(ii)

Motorized vehicles

(I)

In general

The use of motorized vehicles in the Conservation Management Area shall be permitted only on existing roads, trails, and areas designated for use by such vehicles as of .

(II)

New or temporary roads

Except as provided in subclause (III), no new or temporary roads shall be constructed within the Conservation Management Area.

(III)

Exceptions

Nothing in subclause (I) or (II) prevents the Secretary from—
(aa)
rerouting or closing an existing road or trail to protect natural resources from degradation, as determined to be appropriate by the Secretary;
(bb)
constructing a temporary road on which motorized vehicles are permitted as part of a vegetation management project in any portion of the Conservation Management Area located not more than ¼ mile from the Teton Road, South Teton Road, Sun River Road, Beaver Willow Road, or Benchmark Road;
(cc)
authorizing the use of motorized vehicles for administrative purposes (including noxious weed eradication or grazing management); or
(dd)
responding to an emergency.
(IV)

Decommissioning of temporary roads

The Secretary shall decommission any temporary road constructed under subclause (III)(bb) not later than 3 years after the date on which the applicable vegetation management project is completed.

(iii)

Grazing

The Secretary shall permit grazing within the Conservation Management Area, if established on —
(I)
subject to—
(aa)
such reasonable regulations, policies, and practices as the Secretary determines appropriate; and
(bb)
all applicable laws; and
(II)
in a manner consistent with—
(aa)
the purposes described in paragraph (2); and
(bb)
the guidelines set forth in the report of the Committee on Interior and Insular Affairs of the House of Representatives accompanying H.R. 5487 of the 96th Congress (H. Rept. 96–617).
(iv)

Vegetation management

Nothing in this section prevents the Secretary from conducting vegetation management projects within the Conservation Management Area—
(I)
subject to—
(aa)
such reasonable regulations, policies, and practices as the Secretary determines appropriate; and
(bb)
all applicable laws (including regulations); and
(II)
in a manner consistent with the purposes described in paragraph (2).
(4)

Adjacent management

(A)

In general

The designation of the Conservation Management Area shall not create a protective perimeter or buffer zone around the Conservation Management Area.

(B)

Effect

The fact that activities or uses can be seen or heard from areas within the Conservation Management Area shall not preclude the conduct of the activities or uses outside the boundary of the Conservation Management Area.

(c)

Designation of wilderness additions

(1)

In general

16 U.S.C. 1131In accordance with the Wilderness Act ( et seq.), the following Federal land in the State is designated as wilderness and as additions to existing components of the National Wilderness Preservation System:
(A)

Bob Marshall Wilderness

16 U.S.C. 1132Certain land in the Lewis and Clark National Forest, comprising approximately 50,401 acres, as generally depicted on the map, which shall be added to and administered as part of the Bob Marshall Wilderness designated under section 3 of the Wilderness Act ().

(B)

Scapegoat Wilderness

Public Law 92–39516 U.S.C. 1132Certain land in the Lewis and Clark National Forest, comprising approximately 16,711 acres, as generally depicted on the map, which shall be added to and administered as part of the Scapegoat Wilderness designated by the first section of ( note).

(2)

Management of wilderness additions

16 U.S.C. 1131Subject to valid existing rights, the land designated as wilderness additions by paragraph (1) shall be administered by the Secretary in accordance with the Wilderness Act ( et seq.), except that any reference in that Act to the effective date of that Act shall be deemed to be a reference to .

(3)

Livestock

The grazing of livestock and the maintenance of existing facilities relating to grazing in the wilderness additions designated by this subsection, if established before , shall be permitted to continue in accordance with—
(A)
16 U.S.C. 1133(d)(4) section 4(d)(4) of the Wilderness Act (); and
(B)
the guidelines set forth in the report of the Committee on Interior and Insular Affairs of the House of Representatives accompanying H.R. 5487 of the 96th Congress (H. Rept. 96–617).
(4)

Wildfire, insect, and disease management

16 U.S.C. 1133(d)(1)In accordance with section 4(d)(1) of the Wilderness Act (), within the wilderness additions designated by this subsection, the Secretary may take any measures that the Secretary determines to be necessary to control fire, insects, and diseases, including, as the Secretary determines appropriate, the coordination of those activities with a State or local agency.

(5)

Adjacent management

(A)

In general

The designation of a wilderness addition by this subsection shall not create any protective perimeter or buffer zone around the wilderness area.

(B)

Nonwilderness activities

The fact that nonwilderness activities or uses can be seen or heard from areas within a wilderness addition designated by this subsection shall not preclude the conduct of those activities or uses outside the boundary of the wilderness area.

(d)

Maps and legal descriptions

(1)

In general

As soon as practicable after , the Secretary shall prepare maps and legal descriptions of the Conservation Management Area and the wilderness additions designated by subsections (b) and (c), respectively.

(2)

Force of law

The maps and legal descriptions prepared under paragraph (1) shall have the same force and effect as if included in this section, except that the Secretary may correct typographical errors in the map and legal descriptions.

(3)

Public availability

The maps and legal descriptions prepared under paragraph (1) shall be on file and available for public inspection in the appropriate offices of the Forest Service and Bureau of Land Management.

(e)

Noxious weed management

(1)

In general

Not later than 1 year after , the Secretary of Agriculture shall prepare a comprehensive management strategy for preventing, controlling, and eradicating noxious weeds in the district.

(2)

Contents

The management strategy shall—
(A)
include recommendations to protect wildlife, forage, and other natural resources in the district from noxious weeds;
(B)
identify opportunities to coordinate noxious weed prevention, control, and eradication efforts in the district with State and local agencies, Indian tribes, nonprofit organizations, and others;
(C)
identify existing resources for preventing, controlling, and eradicating noxious weeds in the district;
(D)
identify additional resources that are appropriate to effectively prevent, control, or eradicate noxious weeds in the district; and
(E)
7 U.S.C. 7781 identify opportunities to coordinate with county weed districts in Glacier, Pondera, Teton, and Lewis and Clark Counties in the State to apply for grants and enter into agreements for noxious weed control and eradication projects under the Noxious Weed Control and Eradication Act of 2004 ( et seq.).
(3)

Consultation

In developing the management strategy required under paragraph (1), the Secretary shall consult with—
(A)
the Secretary of the Interior;
(B)
appropriate State, tribal, and local governmental entities; and
(C)
members of the public.
(f)

Nonmotorized recreation opportunities

Not later than 2 years after , the Secretary of Agriculture, in consultation with interested parties, shall conduct a study to improve nonmotorized recreation trail opportunities (including mountain bicycling) on land not designated as wilderness within the district.

(g)

Management of fish and wildlife; hunting and fishing

Nothing in this section affects the jurisdiction of the State with respect to fish and wildlife management (including the regulation of hunting and fishing) on public land in the State.

(h)

Overflights

(1)

Jurisdiction of the Federal Aviation Administration

Nothing in this section affects the jurisdiction of the Federal Aviation Administration with respect to the airspace above the wilderness or the Conservation Management Area.

(2)

Benchmark airstrip

Nothing in this section affects the continued use, maintenance, and repair of the Benchmark (3U7) airstrip.

(i)

Release of wilderness study areas

(1)

Finding

43 U.S.C. 1782(c)Congress finds that, for the purposes of section 603(c) of the Federal Land Policy and Management Act of 1976 (), the Zook Creek and Buffalo Creek wilderness study areas in the State have been adequately studied for wilderness designation.

(2)

Release

The Zook Creek and Buffalo Creek wilderness study areas—
(A)
are no longer subject to—
(i)
43 U.S.C. 1782(c) section 603(c) of the Federal Land Policy and Management Act of 1976 (); or
(ii)
Secretarial Order 3310 issued on ; and
(B)
43 U.S.C. 1712 shall be managed in accordance with the applicable land use plans adopted under section 202 of the Federal Land Policy and Management Act of 1976 ().
(j)

Assessment update

(1)

In general

Not later than 5 years after , the Secretary shall review and update the assessment for oil and gas potential for the following wilderness study areas in the State:
(A)
Bridge Coulee.
(B)
Musselshell Breaks.
(2)

Report

Not later than 30 days after the date on which the review is completed under paragraph (1), the Secretary shall submit to the Committee on Energy and Natural Resources of the Senate and the Committee on Natural Resources of the House of Representatives a report that describes the oil and gas potential for the wilderness study areas.

Pub. L. 113–291, div. B, title XXX, § 3065128 Stat. 3833(, , .)

Editorial Notes

References in Text

act Mar. 1, 1911, ch. 18636 Stat. 961section 552 of this titleThe Act of , referred to in subsec. (b)(1)(C)(ii)(I)(aa), is , , popularly known as the Weeks Law, which enacted former sections 513 and 514 and sections 515 to 519, 521, 552, and 563 of this title and amended sections 480 and 500 of this title. For complete classification of this Act to the Code, see Short Title note set out under and Tables.

Pub. L. 94–57990 Stat. 2743section 1701 of Title 43The Federal Land Policy and Management Act of 1976, referred to in subsec. (b)(1)(C)(ii)(II), (3)(A)(ii)(II), is , , , which is classified principally to chapter 35 (§ 1701 et seq.) of Title 43, Public Lands. For complete classification of this Act to the Code, see Short Title note set out under and Tables.

Pub. L. 88–57778 Stat. 890section 1131 of this titleThe Wilderness Act, referred to in subsec. (c)(1), (2), is , , , which is classified generally to chapter 23 (§ 1131 et seq.) of this title. For complete classification of this Act to the Code, see Short Title note set out under and Tables.

Public Law 92–395section 1132 of this titleThe first section of , referred to in subsec. (c)(1)(B), enacted provisions listed in a table of Wilderness Areas set out under .

Pub. L. 106–224Pub. L. 108–412118 Stat. 2320section 7701 of Title 7The Noxious Weed Control and Eradication Act of 2004, referred to in subsec. (e)(2)(E), is subtitle E (§§451–457) of title IV of , as added by , §1, , , which is classified generally to subchapter V (§ 7781 et seq.) of chapter 104 of Title 7, Agriculture. For complete classification of this Act to the Code, see Short Title note set out under and Tables.