Barbless hooks to become voluntary on much of Columbia River and tributaries –
Idaho shuts down Clearwater River spring chinook season
May 1, 2013 - Goldendale Sentinel
Gorge Fly Shop Blog: July 2015
Columbia River - Wikipedia
PNW tribal nations, states sign historic Columbia Basin agreement with U.S.
Barbless hooks still required for Snake River
Washington Sport Fishing Rules 2014-2015 by WhidbeyWeekly.com - Issuu
Where to fish for trout in Oregon in 2009
Restoring Balance: Grayling in the Lower 48 - Anglers Journal - A Fishing Life