GS019

Attribute: SUB

code		description
BL		boulder (>250 mm b-axis)
BR		bedrock
CB		cobble (50-250 mm b-axis)
FO		fine organic debris (<1 cm diameter)
FS		fine sediment (<2 mm b-axis)
GR		gravel (2-50 mm b-axis)
LG		log (>10 cm diameter)
LI		litter
LS		suspended log (suspended above channel bed)
MS		bare mineral soil or colluvium
NR		not recorded
OD		organic debris (1-10 cm diameter)
OS		suspended organic debris
RW		root/rootwad/stump
TF		turf/grass
TR		trail