another place name

[Theresa Kishkan]

Does anyone know the origins of the name Lasca, as in Lasca Creek (on
Kootenay Lake)? It isn't in the place name books that I have but it isn't
awfully big, either, so no surprise.
Theresa Kishkan
RR1 Site 20 C11
Madeira Park, B.C.
V0N 2H0
(604)883-2377
Red Laredo Boots (1996); Sisters of Grass (2000)

"This is the old west where a secret cove with an old house
  is called history, a raven cackling on a limb, mythology."
                                            --Charles Lillard