CSPA Construction of the two dams in the early part of this century on the Elwha River blocked fish passage and greatly diminished usable fish habitat on the upper portion of the river.
(CSPA Construction of the two dams in the early part of this century on the Elwha River; blocked; fish passage) (CSPA Construction of the two dams in the early part of this century on the Elwha River; diminished; usable fish habitat on the upper portion of the river)
CSPA Construction of the two dams in the early part of this century on the Elwha River CSPA Construction of the two dams in the early part of this century on the Elwha River
blocked diminished
fish passage
usable fish habitat on the upper portion of the river