Gateway, Colorado
is located at the western end of Unaweep Canyon in southwestern Colorado. The
sedimentary rocks exposed there range in age from Pennsylvanian to Recent. The
Pennsylvanian and Permian sedimentary rocks were derived from the Uncompahgre Plateau
when it was part of the Ancestral Rocky Mountains. These sedimentary rocks are
very coarse grained adjacent to the ancient uplift and they become increasingly
fine grained away from their ancient source area. These sedimentary rocks are
equivalent in age to much of the rock that is exposed in the National Parks and
Monuments of eastern Utah.
A geographic
feature known as The Palisade dominates the northern skyline in the town of
Gateway. The rock layers exposed in the cliff faces of The Palisade are a good
source of information about the history of this part of the world.
To
get to Gateway from Grand Junction, Colorado, take Horizon Drive west to 12th
Street, turn left on 12th Street, pass Mesa State College, turn right at North
Street (at the south end of Mesa State College). From there turn left on 1st
Street then turn left onto Highway 50 east (also Interstate 70 Business east).
Nine miles later, a right turn lets you continue on Highway 50 east. At the
town of Whitewater turn right onto Highway 141 west (toward the town of
Gateway). Travel on Highway 141 until you reach Gateway. If you cross the
Dolores River you have gone too far. The La Sal mountains are located to the
west of Gateway and are snowcapped throughout most of the year.
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