The map name Klukshu derives from Tlingit Ł’ukshù ‘end of the coho-salmon [run]’. It was recorded by Glave, the English reporter-adventurer in 1890. The Lake drains south via the Klukshu River which joins the Tatshenshini near Dalton Post. On older maps the Klukshu River is called the Unahini which is its Tlingit name Ghunà-hîni ‘Athapaskan River’.

The kind of fishtrap used at Łu Ghą is highly sophisticated. A V-shaped fence is placed in the creek, pointing upstream. Inside the V is a long box. The fish are funneled into the point of the V where they turn back, and jump into the box over a row of pointed sticks which angle into the box. The water in the box is too shallow for the fish to jump out of. The fish are taken from the trap with a gaff, clubbed, then cleaned and cut for drying.