Shorty's Island Substrate Enhancement Pilot Project Extent, Kootenai River near Bonners Ferry, ID, 2014
The substrate enhancement pilot project (SEPP) extent GIS layer represents an area 
where an artificial substrate will be placed. The artificial substrate, consisting of a mixed 
size class of gravel, is aimed at providing a more suitable substrate for sturgeon eggs 
and early-life rearing habitat. The location of the …