|1||Locations of debris flows and fast-moving landslides|
|2||Approximate location of debris flows and related fast-moving landslides|
|3||Identification as debris flow or related fast-moving landslide uncertain|
|4||Approximate location, and uncertain identification as debris flow or related fast-moving landslide|
|5||Location of debris flow or related fast-moving landslide specific only by county|
|6||Identification as debris flow or related fast-moving landslide uncertain and specific only by county|
|7||Location of debris flow or or related fast-moving landslide from unpublished report|
|8||Approximate location and uncertain identification as debris flow or related fast-moving landslide|
We are grateful to several state geologists and members of their staff who kindly reviewed a preliminary copy of the map and the bibliography and provided new information. We are particularly grateful to M. Lee Allison, State Geologist for Utah, and members of his staff who contributed a digital database of debris flow locations for Utah. We also wish to thank Stephen Ellen, Russell Campbell, Gerald Wieczorek, and David Howell for their reviews and help during various phases of the work.
These data are intended for geographic display and analysis at the national level, and for large regional areas. It is not intended for hazard evaluation or other site-specific work, and should not be used for such. It can be used to determine where debris flow processes may be a problem and where additional information and investigation are warranted. Although the digital form of the data removes the constraint imposed by the scale of a paper map, the detail and accuracy inherent in map scale are also present in the digital data. The fact that this database was edited at a scale of 1:2,500,000 means that higher resolution information is not present in the data. Plotting at scales larger than 1:2,500,000 will not yield greater real detail, and it may reveal fine-scale irregularities below the intended resolution of the database. Similarly, where this database is used in combination with other data of higher resolution, the resolution of the combined output will be limited by the lower resolution of these data. No responsibility is assumed by the U.S. Geological Survey in the use of these data.
Are there legal restrictions on access or use of the data?
Use_Constraints:None. Acknowledgment of the National Atlas of the United States of America and (or) the U.S. Geological Survey would be appreciated in products derived from these data.
Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made by the U.S. Geological Survey regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by the U.S. Geological Survey in the use of these data. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
|Data format:||Debris flow inventory points and polygons, shaded relief map in format ARCE (version 7.0) Size: 3.6|