
Trailhead (view northwest towards Cottonwood Canyon).
|
Overview
The Jumbo Springs
wilderness area was designated in 2002. The
area includes sparsely vegetated granitic ridges and canyons that
overlook the eastern end of Lake Mead. The geology of the general area
is complex and includes a variety of oddly juxtaposed rock types. In
the wilderness area, the lower strata seems to be metamorphic, and
these are overlain by granitic rocks. There are granitic domes and
smooth cliffs along the ridge tops, and the side slopes are strewn with
coarse-grained granitic boulders and deeply cut by canyons. Carbonate
and basalt rocks also occur in the region. The granitic boulders and
cliffs in the wilderness area remind me of Joshua Tree National Park.
Link to map or elevation
profile. |

Cottonwood Canyon (view northwest).
|
The side slopes are rocky
and sparsely vegetated with a fair
variety of Mojave Desert Scrub species that include creosote bush,
catclaw acacia, yucca, Ephedra, buckwheat, a few cacti (e.g.,
Beavertail and mound cactus), and there are cryptobiotic crusts in some
places. There are lots of barrel cactus on the more rocky slopes. In
Cottonwood Canyon, the dominant shrubs include rabbitbrush, catclaw
acacia, desert willow, mesquite, and buckhorn cholla.
Cottonwood Canyon makes
for a nice route that leads into the
heart of the Jumbo Springs Wilderness Area. The canyon runs up into
granitic mountains, which is a nice change from the sandstone and
limestone with which southern Nevada hikers are so familiar. The canyon
starts out narrow and rocky, then gets narrower with several little
water-polished waterfalls to climb, and finally opens into a wider
desert canyon. From high in the canyon, you can hike northeast, pick up
an old road, and follow it back to the trailhead. There are no trails. |

Water-polished granite with potholes (view northwest).
|
Watch
Out
Other than the standard
warnings about hiking in the
desert, ...this is a wild and remote
area. I encountered no unusual hazards, but be careful climbing the
waterfalls as a twisted ankle out there would be more serious than in
less-remote areas. The access road is graded, but the lower canyon is
sandy, rocky, and subject to wash out, so either drive carefully and
stop early if you need to, or take a 4-wheel-drive vehicle.
While hiking, please respect
the land and
the other people out there, and try to Leave No Trace of your passage.
Also, this is a remote hike, so be sure to bring the 10
Essentials.
This is a Federally
designated Wilderness Area, so pay extra
attention to respecting the land. |

The side canyon with the enormous boulders that I hiked past while
looping back to the old road (view northeast).
|
Trail
Guide
Getting
to the Trailhead
Cottonwood Canyon is
located in the Jumbo Springs Wilderness
Area, which is out in the Gold Butte region at the northeast end of
Lake Mead. This hike is about 3 hours northeast of Las Vegas in a wild,
remote, and scenic area.
From Whitney Pockets
(Table 1, Site 462), drive south on Gold
Butte Road for 16.2 miles to Devils Cove Road (Site 797). Turn left
onto Devils Cove Road and drive southeast for an additional 11.6 miles
(heading southeast over a ridge, down into a canyon, up over a saddle,
and finally down a rocky canyon) to Cottonwood Canyon (Site 798). The
lower portion of Devils Cove Road runs in a sandy, rocky canyon that is
subject to wash out, so either drive carefully and stop early if you
need to, or take a 4-wheel-drive vehicle. The turnoff (Site 798), a
nondescript sandy road to the west, is the only side road in the
vicinity. Turn right onto the side road and drive west for a short
distance (400 feet) to the end of the road (Site 799). Stay out of the
soft sand. Park here; this is the trailhead. |

Lake Mead (view south from the northern boundary of the Wilderness
Area).
|
The
Hike
From the trailhead (Table 2, Waypoint 1), the route crosses the main
wash (the one the road came down) and runs up the side canyon
(Cottonwood Canyon) to the west. The route starts up Cottonwood Canyon
on an old (now illegal) road. About 2 minutes out, the illegal road
cuts north up a narrow cleft in the canyon wall and heads north to exit
the Wilderness Area. Stay in the bottom of Cottonwood Canyon and
continue hiking west. Initially, the bottom of the canyon is hard to
walk in, but there are animal (horse and sheep?) trails along the edge
of the wash that can be followed in some places.
Shortly, the canyon narrows at the first of several water-polished
granite waterfalls (Wpt. 2). The falls are nicely sculpted, and some
have what appear to be carbonate flowstone deposits. The deposits seem
odd because the area is granitic, so I don't know the origin of the
carbonate materials. |

Rocky crags with yucca (view west).
|
After climbing several low
waterfalls (at about
1.0 miles out), the main canyon jogs to the north into what seems to be
a side canyon. Climb the waterfall (Wpt. 3) that seems to be on the
north side of the canyon. There are water pockets above this waterfall
where there is enough water to support a small patch of cattail and
other aquatic plant species.
Continue up the canyon for as far as you want. I didn't have much time,
and I only got to a wide, open spot in the canyon 1.2 miles out. At
this point, a major side canyon comes in from the north (Wpt. 4). I
left Cottonwood Canyon at this point and climbed side canyon, crawling
under two enormous boulders part way up the side canyon. There are more
water-polished waterfalls under the boulders. I climbed to the ridge
above and east of the enormous boulders, headed east to the illegal
road (Wpt. 5 [1.8 miles out]), and followed it back to the trailhead
(2.85 miles). |
|
Table
1. Highway Coordinates (NAD27; UTM Zone 11S).
| Site
# |
Location |
Latitude
(°N) |
Longitude
(°W) |
UTM
Easting |
UTM
Northing |
Elevation
(feet) |
Verified |
| 462 |
Whitney
Pockets |
36.5231 |
114.1390 |
756178 |
4045577 |
3,013 |
Yes |
| 797 |
Gold
Butte Rd at Devils Cove Rd |
36.3132 |
114.1545 |
755475 |
4022241 |
3,497 |
Yes |
| 798 |
Devils
Cove Rd at Cottonwood Canyon |
36.1887 |
114.1177 |
759194 |
4008528 |
1,940 |
Yes |
| 799 |
Cottonwood
Canyon trailhead |
36.1895 |
114.1185 |
759120 |
4008616 |
1,945 |
Yes |
Table 2. Hiking
Coordinates Based
on GPS Data (NAD27, UTM Zone 11S).
| Wpt. |
Location |
Easting |
Northing |
Elevation (ft) |
Verified |
| 1 |
Trailhead |
759120 |
4008616 |
1,945 |
Yes |
| 2 |
Granite waterfall |
758699 |
4008865 |
2,085 |
GPS |
| 3 |
Waterfall |
758031 |
4009280 |
2,377 |
GPS |
| 4 |
Major side canyon to the
north |
757796 |
4009519 |
2,494 |
GPS |
| 5 |
Illegal road |
758416 |
4009939 |
2,593 |
GPS |
|