channels  search
RTgeomorphology
 fluvial features
 gullies
 rivers
 planar bedding structures
 sedimentary structures
 furrows
 braided streams
 buried channels
 canals
 gorges
 channel geometry
 channelization
 culverts
 grooves
 knickpoints
 lava channels
 levees
 rills
 riprap
 sedimentati
SNFor the geomorphic feature, index fluvial features if applicable.