The north arm is not as productive as the south arm. However, that being said, The best thing to do is to scope out the river at a very low slack tide. For reference I would add one hr. to the Pt. Atkinson lighthouse schedule....You will need a nice sloping beach, not a drop off or deep channel. You can also see where the hazards are on the bottom, during a low tide as the river has a lot of nasty hook & gear grabbers. Once you find a good place, fish it on the incoming and right thru the high slack tide...You do not have to cast to the middle of the river...Usually 30- 40 feet is plenty as most salmon will follow the seam between the very fast water and the quieter water close to shore......Use dew worms, single eggs or roe and if you can keep the course fish at bay, you will eventually catch some trout, salmon, and perhaps sturgeon.....Now that's a differnt story...Gear is simple and any sport shop can help you out.....I would pay a visit to Berry's Bait & Tackle....Good people and very knowledgeable..........Tight lines...Ortho 8)