Umpqua was an Athabascan language once spoken on
the Oregon coast. Unfortunately there have been no Umpqua speakers for at least fifty years, and few remnants of the
language have survived. This language is often referred to as "Upper Umpqua" by anthropologists, to distinguish it from
Siuslaw, which they call "Lower Umpqua." The "upper"
and "lower" do not refer to any features of the languages, which are entirely unrelated (Siuslaw is a
Penutian language)--Umpqua is the native name of the
river both tribes live on, and the Athabaskan speakers simply live upriver from the Siuslaw speakers.