(2) subject to such terms and conditions as the 
Secretary determines to be necessary. 
(h) LAW ENFORCEMENT.—Nothing in this title pre-
cludes any law enforcement or drug interdiction effort 
within the wilderness areas or wilderness additions des-
ignated by section 203 in accordance with the Wilderness 
Act (16 U.S.C. 1131 et seq.). 
(i) WITHDRAWAL.—Subject to valid existing rights, 
the wilderness areas and additions designated by section 
203 are withdrawn from— 
(1) all forms of entry, appropriation, and dis-
posal under the public land laws; 
(2) location, entry, and patent under the mining 
laws; and 
(3) operation of the mineral materials and geo-
thermal leasing laws. 
(j) INCORPORATION OF ACQUIRED LAND AND INTER-
ESTS.—Any land within the boundary of a wilderness area 
or addition that is acquired by the United States shall— 
(1) become part of the wilderness area or addi-
tion in which the land is located; and 
(2) be managed in accordance with this section, 
the Wilderness Act (16 U.S.C. 1131 et seq.), and 
any other applicable laws (including regulations). 
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(k) CLIMATOLOGICAL DATA COLLECTION.—In ac-
cordance with the Wilderness Act (16 U.S.C. 1131 et seq.) 
and subject to such terms and conditions as the Secretary 
may prescribe, the Secretary may authorize the installa-
tion and maintenance of hydrologic, meteorologic, or cli-
matological collection devices in a wilderness area or addi-
tion if the Secretary determines that the facilities and ac-
cess to the facilities is essential to a flood warning, flood 
control, or water reservoir operation activity. 
(l) AUTHORIZED EVENTS.—The Secretary of Agri-
culture may authorize the Angeles Crest 100 competitive 
running event to continue in substantially the same man-
ner and degree in which this event was operated and per-
mitted in 2015 within additions to the Sheep Mountain 
Wilderness in section 203 of this Act and the Pleasant 
View Ridge Wilderness Area designated by section 1802 
of the Omnibus Public Land Management Act of 2009, 
provided that the event is authorized and conducted in a 
manner compatible with the preservation of the areas as 
wilderness. 
SEC. 205. DESIGNATION OF WILD AND SCENIC RIVERS. 
(a) DESIGNATION.—Section 3(a) of the Wild and 
Scenic Rivers Act (16 U.S.C. 1274(a)) is amended by add-
ing at the end the following: 
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‘‘(ll) EAST FORK SAN GABRIEL RIVER, CALI-
FORNIA.—The following segments of the East Fork 
San Gabriel River, to be administered by the Sec-
retary of Agriculture in the following classes: 
‘‘(A) The 10-mile segment from the con-
fluence of the Prairie Fork and Vincent Gulch 
to 100 yards upstream of the Heaton Flats 
trailhead and day use area, as a wild river. 
‘‘(B) The 2.7-mile segment from 100 yards 
upstream of the Heaton Flats trailhead and day 
use area to 100 yards upstream of the con-
fluence with Williams Canyon, as a recreational 
river. 
‘‘(ll) NORTH
FORK
SAN
GABRIEL
RIVER, 
CALIFORNIA.—The 4.3-mile segment of the North 
Fork San Gabriel River from the confluence with 
Cloudburst Canyon to 0.25 miles upstream of the 
confluence with the West Fork San Gabriel River, to 
be administered by the Secretary of Agriculture as 
a recreational river. 
‘‘(ll) WEST FORK SAN GABRIEL RIVER, CALI-
FORNIA.—The following segments of the West Fork 
San Gabriel River, to be administered by the Sec-
retary of Agriculture in the following classes: 
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‘‘(A) The 6.7-mile segment from 0.25 
miles downstream of its source near Red Box 
Gap in sec. 14, T. 2 N., R. 12 W., to the con-
fluence with the unnamed tributary 0.25 miles 
downstream of the power lines in sec. 22, T. 2 
N., R. 11 W., as a recreational river. 
‘‘(B) The 1.6-mile segment of the West 
Fork from 0.25 miles downstream of the 
powerlines in sec. 22, T. 2 N., R. 11 W., to the 
confluence with Bobcat Canyon, as a wild river. 
‘‘(ll) LITTLE ROCK CREEK, CALIFORNIA.— 
The following segments of Little Rock Creek and 
tributaries, to be administered by the Secretary of 
Agriculture in the following classes: 
‘‘(A) The 10.3-mile segment from its 
source on Mt. Williamson in sec. 6, T. 3 N., R. 
9 W., to 100 yards upstream of the confluence 
with the South Fork Little Rock Creek, as a 
wild river. 
‘‘(B) The 6.6-mile segment from 100 yards 
upstream of the confluence with the South Fork 
Little Rock Creek to the confluence with 
Santiago Canyon, as a recreational river. 
‘‘(C) The 1-mile segment of Cooper Can-
yon Creek from 0.25 miles downstream of 
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Highway 2 to 100 yards downstream of Cooper 
Canyon Campground, as a scenic river. 
‘‘(D) The 1.3-mile segment of Cooper Can-
yon Creek from 100 yards downstream of Coo-
per Canyon Campground to the confluence with 
Little Rock Creek, as a wild river. 
‘‘(E) The 1-mile segment of Buckhorn 
Creek from 100 yards downstream of the 
Buckhorn Campground to its confluence with 
Cooper Canyon Creek, as a wild river.’’. 
(b) WATER RESOURCE FACILITIES; AND WATER 
USE.— 
(1) WATER RESOURCE FACILITIES.— 
(A) DEFINITION.—In this section, the 
term ‘‘water resource facility’’ means irrigation 
and pumping facilities, dams and reservoirs, 
flood control facilities, water conservation works 
and facilities, including debris protection facili-
ties, sediment placement sites, rain gauges and 
stream gauges, water quality facilities, recycled 
water facilities and water pumping, conveyance 
distribution systems, water storage tanks and 
reservoirs, and water treatment facilities, aque-
ducts, canals, ditches, pipelines, wells, hydro-
power projects, and transmission and other an-
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