ment and Interpretation Plan. The interagency technical 
committee—
(1) shall include representation from the local, 
State, tribal, and Federal governments with interests 
in the floods and representation from the Ice Age 
Floods Institute; and 
(2) may include private property owners, busi-
ness owners, and nonprofit organizations. 
(d) TRAIL ADVISORY COMMITTEE.—The Secretary 
shall establish and maintain a trail advisory committee 
comprised of individuals appointed by public land manage-
ment agencies, local, State, and tribal governments, pri-
vate citizens, and interested nonprofit organizations, in-
cluding the Ice Age Floods Institute. The trail advisory 
committee shall assist the Trail manager and staff with 
the operation of the Trail. 
(e) MANAGEMENT PLAN.—Not later than 3 years 
after funds are made available for this purpose, the Sec-
retary shall prepare a Cooperative Management and Inter-
pretation Plan for the Trail in consultation with State, 
local, and tribal governments, the Ice Age Floods Insti-
tute, private property owners, and other interested parties. 
The Cooperative Management and Interpretation Plan 
shall—
(1) describe strategies for the coordinated de-
velopment of the Trail, including an interpretive 
plan for facilities, waysides, roadside pullouts, exhib-
its, media, and programs that would present the 
floods’ story to the public effectively; 
(2) identify potential partnering opportunities 
in the development of interpretive facilities and edu-
cational programs to educate the public about the 
story of the flood; 
(3) confirm and, if appropriate, expand upon 
the inventory of floods’ features contained in the 
National Park Service study entitled ‘‘Ice Age 
Floods, Study of Alternatives and Environmental 
Assessment’’ (February, 2001) by locating features 
more accurately, improving the description of fea-
tures, and reevaluating the features in terms of their 
interpretive potential; and 
(4) review and, if appropriate, modify the map 
of the Trail referred to in section 4(b)(1). 
(f) LAND ACQUISITION.—The Secretary may acquire 
not more than 25 acres of land for public information and 
administrative purposes to facilitate the geographic diver-
sity of the entire trail throughout Montana, Idaho, Wash-
ington and Oregon. Such acquisitions shall be consistent 
with the Cooperative Management and Interpretation
Plan. Of these 25 acres, private land may be acquired 
from willing sellers only by exchange, donation, or pur-
chase with donated or appropriated funds. Non-Federal 
public lands may be acquired from willing sellers only by 
donation or exchange and only after consultation with the 
affected local governments. 
(g) INTERPRETIVE FACILITIES.—The Secretary may 
plan, design, and construct interpretive facilities for sites 
associated with the Trail if the facilities are constructed 
in partnership with State, local, tribal, or non-profit enti-
ties and are consistent with the Cooperative Management 
and Interpretation Plan. 
(h) PRIVATE PROPERTY RIGHTS.—Nothing in this 
Act shall be construed to require any private property 
owner to allow public access (including Federal, State or 
local government access) to such private property or to 
modify any provision of Federal, State or local law with 
regard to public access to or use of private lands. 
(i) LIABILITY.—Designation of the trail shall not be 
considered to create any liability or to have any effect on 
any liability under any law of any private property owner 
with respect to any persons injured on such private prop-
erty. 
(j) COOPERATIVE MANAGEMENT.—In order to facili-
tate the development of coordinated interpretation, edu-
cation, resource stewardship, visitor facility development 
and operation, and scientific research associated with the 
Trail, and to promote more efficient administration of the 
sites associated with the Trail, the Secretary may enter 
into cooperative management agreements with appropriate 
officials in Montana, Idaho, Washington, and Oregon in 
accordance with the authority provided for units of the 
National Park System under section 3(l) of Public Law 
91–383 (112 Stat. 3522; 16 U.S.C. 1a-2). For purposes 
of this subsection only, the Trail shall be considered a unit 
of the National Park System. 
(k) COOPERATIVE AGREEMENTS.—The Secretary is 
authorized to enter into cooperative agreements with pub-
lic or private entities to further the purposes of this Act. 
(l) UNITED STATES GEOLOGICAL SURVEY.—The 
Secretary shall use the United States Geological Survey 
to assist the Interagency Technical Committee and the 
National Park Service carry out this Act. 
(m) REGULATIONS
PROHIBITED.—The Secretary 
may not promulgate regulations specifically for manage-
ment of the Trail. 
SEC. 6. AUTHORIZATION OF APPROPRIATIONS. 
There are authorized to be appropriated such sums 
as may be necessary to carry out this Act. Not more than