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<br />Mapping Methods, Data <br /> <br /> <br />Table 2, eont.: Sources of Mapping Assistance. <br /> <br />Type of <br />Hazard <br /> <br />Ground <br />F ai/ure: <br />Liquefaction <br /> <br />Ground <br />Failure: <br />Subsidence <br /> <br />lee Jam <br />Flooding <br /> <br />Mudfloods <br />and <br />Mudflows <br /> <br />· General and detailed assessments of earthquake and liquefaction <br />probability from V.S. Geological Survey, <br /> <br />· Geological studies, water atlas from V,S. Geological Survey karst <br />strata, ground water information) <br />· Soil surveys from V.S. Soil Conservation Service (organic soils). <br />· Mine and irrigation locations from state regulatory agencies, <br />· Historic events and damages from local newspaper archives <br />· Information on karst terrain mapping methods and assistance in <br />studies from Florida Sinkhole Research Institute. <br /> <br />· Historical records of ice jam floods from local newspaper archives. <br />· Historical data concerning locations where ice jam floods have <br />occurred from long-term residents <br />· Some flood insurance rate maps from the Federal Emergency Man <br />agement Agency show ice jam flood-prone areas <br />· Map method from V,S. Army Corps of Engineers Cold Regions Re- <br />search and Engineering Laboratory (see bibliography) <br /> <br />· Historical records of events and damages from V.S. or state <br />geological surveys, archives, university geology departments <br />· Topographic maps from U,S. Geological Survey <br />· Soil surveys from U.S. Soil Conservation Service <br /> <br />B-12 <br />