Miscellaneous 



GRAL - gravelly alluvium 



SAAL - sandy alluvium 



SIAL - silty alluvium 



CLAL - clayey alluvium 



MIAL - mixed alluvium 



GLTI - glacial till, mixed origin 



ASHT - ash (of any origin) 



MISE - mixed sedimentary 



MIME - mixed metamorphic 



MUG - mixed igneous 



LOES - loess 



MIRT - mix of two or more rock types 



DUNE - sand dunes 



LANDFORM (four-character code) 



Enter the appropriate geomorphic 

 below: 



landform code from the list 



General Landform Type 



residual mountain 

 slopes and ridges 



glaciated mountain 

 slopes and ridges 



alpine glacial 

 valleys 



Code Refined Landform Type 



RMTU type unknown 



RMDS dissected straight slopes 



RMDC dissected convex slopes 



RMUS undissected slopes 



RMRI ridges 



RMDE depressions 



GMTU type unknown 



GMUS undissected slopes 



GMDS dissected slopes 



GMRI ridges 



AVTU type unknown 



AVTB trough bottoms 



AVUT undissected troughwalls 



AVDT dissected troughwalls 



AVAP avalanche paths and 

 debris fans 



alpine glacial ridges 



ARTU 



type unknown 



ARCB 

 ARCH 



ARUU 



cirque basins 

 cirque headwalls 

 alpine ridges 

 undulating uplands 



and 



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