(4) Recent surveys and research have deter-
mined that the historic and cultural sites that the 
Casa Grande National Monument was established to 
protect and preserve extend outside the existing 
boundary of the Monument. 
(5) Opportunities to protect the few remaining 
areas in Arizona where this historic Hohokam cul-
ture is present are greatly threatened by rapid 
growth and development. 
(6) The National Park Service is studying the 
possibility of expanding the Monument to include 
other sensitive archeological sites associated with the 
Casa Grande community and to preserve the historic 
integrity of the Monument. 
SEC. 3. ACQUISITION AND TRANSFER OF ADMINISTRATIVE 
JURISDICTION OF LANDS. 
(a) ACQUISITION OF STATE LANDS.—The Secretary 
is authorized to transfer or acquire by donation, exchange, 
or purchase with donated or appropriate funds from will-
ing owners only, the private or State lands or interests 
in lands generally depicted on the map to be administered 
as part of the Monument. 
(b) TRANSFER OF ADMINISTRATIVE JURISDICTION 
TO NPS.—The following Federal lands generally depicted 
on the map are hereby withdrawn from all forms of entry, 
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appropriation, and disposal under the public land laws; lo-
cation, entry, and patent under the mining laws; and oper-
ation of the mineral leasing and geothermal leasing laws 
and mineral materials laws and administrative jurisdiction 
of such Federal lands is hereby transferred to the National 
Park Service to be administered as part of the Monument: 
(1) The approximately 3.8 acres of Federal 
land administered by the Bureau of Land Manage-
ment. 
(2) The approximately 7.41 acres of Federal 
land of administered by the Bureau of Indian Af-
fairs. 
(c) TRANSFER OF ADMINISTRATIVE JURISDICTION 
TO BIA.—Administrative jurisdiction of the approximately 
3.5 acres of Federal land administered by the National 
Park Service as generally depicted on the map as ‘‘Lands 
to be Transferred to BIA’’ are hereby transferred to the 
Bureau of Indian Affairs for the purposes of the San Car-
los Irrigation Project. 
(d) ADMINISTRATION.—Upon acquisition or transfer 
of lands under this section, the Secretary shall administer 
those lands as part of the Monument in accordance with 
the laws generally applicable to units of the National Park 
System, including— 
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(1) the National Park Service Organic Act (16 
U.S.C. 1 et seq.); and 
(2) the Act of August 21, 1935 (16 U.S.C. 461 
et seq.). 
(e) BOUNDARY AND MAP UPDATE.—Upon comple-
tion of the transfers or acquisitions pursuant to this sec-
tion, the Secretary shall modify the boundary of the Monu-
ment accordingly, and shall update the map to reflect the 
transfers. 
(f) MAP ON FILE.—The map shall be on file and 
available for inspection in the appropriate offices of the 
National Park Service, U.S. Department of the Interior. 
SEC. 4. ADMINISTRATION OF STATE TRUST LANDS. 
The Secretary may enter in to an agreement with the 
State to provide for cooperative management of the ap-
proximately 200 acres of State trust lands generally de-
picted on the map. 
SEC. 5. BOUNDARY STUDY. 
(a) IN GENERAL.—The Secretary shall conduct a 
study to identify any additional lands that the Secretary 
considers appropriate to be a part of any further adjust-
ments to the boundary of the Monument. 
(b) CRITERIA.—The study shall examine the natural, 
cultural, recreational, and scenic values and characters of 
lands identified under subsection (a). 
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(c) REPORT.—Not later than 2 years after the date 
funds are made available for the study under this section, 
the Secretary shall submit to the Committee on Natural 
Resources of the House of Representatives and the Com-
mittee on Energy and Natural Resources of the Senate 
a report on the findings, conclusions, and recommenda-
tions of the study. 
Æ 
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