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L22 Waterfall. Yellowstone National Park, Wyoming, USA
Position:
N44° 44' W110° 25' approx.
Elevation:
7163' / 2350m
Image format:
MF 35mm
WATERFALL
This is a huge waterfall on America's Yellowstone River in Yellowstone
National Park, Wyoming. Major areas of Yellowstone are covered
with great thicknesses of VOLCANIC ASH and LAVA following a huge
explosion I maybe 500,000 million years ago. Some of the rock
layers are more resistant to EROSION than the ash layers. These
rocks hold back erosion and often form big "steps" along rivers
that we call WATERFALLS. The Upper Yellowstone Falls is just one
of these features where the water falls hundreds of feet/m over
a rocky step.
The flat skyline highlights the fact that Yellowstone and many
other mountain areas are PLATEAUX. A PLATEAU is a flat topped
land mass.
Less detail
Image Trail:
L8 Mountain stream on glaciated bed rock. Co. Kerry, Ireland
L28 Granite dome and waterfall. Yosemite National Park. California,
USA
Links:
http://www.nps.gov/yell/nature/geology/index.htm
http://geography.com.sg/rivers/index.html |
