Per Fisheries Notice 1058
Effective immediately until further notice, you may not retain Chinook salmon
on the Harrison River in Region 2.
This measure is required as the 2018 forecast estimate of spawner abundance for
Harrison chinook is 61,825 and this is less than the escapement goal range of
75,100 to 98,500 spawners.
it's open but no retention. The fish mostly aren't in very good condition - they are dark to black - the fall run is almost exclusively whites and they lose their table quality once they color significantly.
What other systems have openings? The Vedder and Stave white springs are hatchery produced. The Harrison is predominately wild.
FWIW the Harrison went through 30 or more years of closure for springs and somewhere around 20 years of total closure for salmon fishing during a period when the spring return was depressed.