Originally Fort Lewis, now combined with Air Force Base into Joint Base Lewis McChord.   Give it 1/2" - 1" and Seattle is shutdown, some four wheel drives, some studs (if you go over the passes on a regular basis) , also, almost no chains unless some one goes over the passes on a regular basis.
You are right dogfish are sharks.   You should have also caught perch and/or flounder.   Hood Canal was also good for crab, oysters, and steamer clams.   Also, about twice a year, you got smelt.   I was either across the road from or on the water, near the end of the Canal.