General Plot Position 



narrow valley bottom 

 (<100 feet wide) 



moderate valley bottom 

 (100-300 feet wide) 



wide valley bottom 

 (>300 feet wide) 



slope features 



short slope 



lower slope 



mid slope 

 upper slope 



Code 



NVTU 



NVSC 

 NVSB 

 NVLE 



NVCD 

 MVTU 



MVSC 

 MVSB 

 MVFP 



MVAM 

 MVOX 

 MVBS 

 MVTE 

 MVAF 



WVTU 



WVSC 

 WVSB 

 WVFP 



WVAM 

 WVOX 

 WVBS 

 WVTE 

 WVAF 



SLTU 



SLSS 



SLLS 

 AFLS 



SLMS 

 AFMS 



SLUS 

 AFUS 



Refined Plot Position 



type unknown 



stream channel 



stream bar 



levee (narrow flood plain 



overbank deposits) 



colluvial deposit 



(colluvial fan) 



type unknown 



stream channel 



stream bar 



flood plain (incl. levees 



if appropriate) 



abandoned meander 



oxbow 



backwater slough 



terrace 



alluvial fan (toeslope) 



type unknown 



stream channel 



stream bar 



flood plain (incl. levees 



if appropriate) 



abandoned meander 



oxbow 



backwater slough 



terrace 



alluvial fan (toeslope) 



type unknown 



short slope, neither 

 upper nor lower (<100 ft) 



lower slope 



lower slope of alluvial 



fan (fan skirt) 



mid slope 



mid slope of alluvial fan 



upper slope 



upper slope of alluvial 



fan 



14 



