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<br />(2) mudflow - movement of water-saturated rock debris down <br /> <br />definite channels <br /> <br />The Slumgullion earthflow is a classic example of the earthflow <br /> <br />feature. <br />The Lake City mudflow, located at the north boundary of the Lake <br /> <br />City town line, is a good example of the mudflow feature, The large cones <br /> <br /> <br />. of loose rock debris near the townsite of Sherman (i) miles southwest of <br /> <br />Lake City) were deposited by mudflow processes. Mudflows are relatively <br /> <br /> <br />common occurrences in the San Juans and can be extremely dangerous to life <br /> <br />and property. These features originate during times of heavy rains on <br /> <br /> <br />the slopes above timberline. Eye-witness accounts of the mudflows near <br /> <br /> <br />Sherman tell of rivers of rock debris flowing over the cliffs like water. <br /> <br />III. Landslides <br /> <br />. <br /> <br />a. slump - the downward Slipping of one or several units of rock <br />debris usually with a backward rotation with respect to <br />the slope over which the unit or units moved <br /> <br />20 <br /> <br />o <br />o <br />o <br />-.] <br />t-' <br />~ <br />