Difference between revisions of "Alluvial fan"
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| − | An '''alluvial fan''' is the dirt, sand, gravel, rocks, and boulders which a mountain stream emerging from a canyon deposits at the mouth of the canyon. The alluvial fan [[Crestone]] is on is extends for about 1 mile south and west from the mouth of [[North Crestone Canyon]]. | + | An '''alluvial fan''' is the dirt, sand, gravel, rocks, and boulders which a mountain [[stream]] emerging from a canyon deposits at the mouth of the canyon. The alluvial fan [[Crestone]] is on is extends for about 1 mile south and west from the mouth of [[North Crestone Canyon]]. |
During normal stream flow Crestone Creek flows in a confined bed, but during [[flash flood]]s it may escape its bed and establish a new course. It is hard for substantial tropical moisture to enter the San Luis Valley, but if unusual conditions exist it can and a substantial flood can occur. This can result in houses being washed away a new course being established for the creek. | During normal stream flow Crestone Creek flows in a confined bed, but during [[flash flood]]s it may escape its bed and establish a new course. It is hard for substantial tropical moisture to enter the San Luis Valley, but if unusual conditions exist it can and a substantial flood can occur. This can result in houses being washed away a new course being established for the creek. | ||
Revision as of 03:24, 24 July 2016
An alluvial fan is the dirt, sand, gravel, rocks, and boulders which a mountain stream emerging from a canyon deposits at the mouth of the canyon. The alluvial fan Crestone is on is extends for about 1 mile south and west from the mouth of North Crestone Canyon.
During normal stream flow Crestone Creek flows in a confined bed, but during flash floods it may escape its bed and establish a new course. It is hard for substantial tropical moisture to enter the San Luis Valley, but if unusual conditions exist it can and a substantial flood can occur. This can result in houses being washed away a new course being established for the creek.
