WSP11775

• File Number: 8446
• Description: Cache La Poudre Platte Project
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 5/1/1975
• Title: Cache La poudre Trail Interpretive Plan
• Water Supply Pro - Doc Type: Report/Study

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shaped lake is left. These oxbows ~ay be reclaimed by the

river as it changes its course again, or they may fill in

completely with sand and soil (see Figure 3, page 16 ).

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Bellvue Dome. The Bellvue Dome is an unusual feature

which clearly shows the effect of geologic forces. The earth's

crust in folding, developed a wrinkle both east and west and

north and south. A dome was formed as a result. Later,

mountain erosion caused sediments to be deposited on top of

the dome. Then the Poudre River established its course

across the sediment on top of the dome. Later the surface

began a period of uplifts. While the land slowly rose, the

river continued cutting down through the sediment. When the

river reached the dome it continued to cut downward through

the solid rock as the land rose. As seen today, the Bellvue

Dome is the result of this uplift of the land and cutting

of the river (42:209-211).

Watson Lake, located on the river between the remaining

sides of the dome, is a product of man, not geologic activity.

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Rocky Mountains and Hogbacks. The Rocky Mountains

just west of Fort Collins are the longest chain of mountains

on the planet, stretching from Alaska to Mexico. Their

growth began 60 million years ago.

Slow uplifts raised towering domes of granite and

schist.. In some places, the dome was fractured and one

block slipped over another. These fractures also formed

outlets permitting magma to pour forth from the interior of

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