What anchor set up works best for you on rivers?

Howdy all.  I've looked at many different anchor set ups but I'm not sure what's best for a river. I just installed trolley system.  I'm planning on fishing along the lower Snohomish which I know is paved with logs. I noticed a cool kayak anchor system from Anchor Wizard.  Has anyone tried this out?  Also does anyone have a link to setting up an anchor float.  Seems like a quick disconnect from an anchor line when needed might prevent loss of equipment and dignity.

I'm not a fan of anchor trolley's on rivers as they often don't allow you to anchor directly off your bow or stern.   With strong current, any anchor that pulls partially from the side of your kayak is going to cause issues.

I personally use two kinds of river anchors.  One is a deep water river detachable anchor system that  I use for sturgeon fishing. 
http://www.northwestkayakanglers.com/index.php?page=26

The second anchor system is more of a drift boat style anchor system.   In some ways it works very much like the Anchor Wizard you mentioned, but if necessary you can toss the line and unanchor quickly if need be.

http://www.northwestkayakanglers.com/index.php?page=28

I use a river anchor as it is called.

http://www.westmarine.com/buy/west-marine--economy-river-anchors--P013846514

It is a like a mushroom anchor with flukes. I would not trust a grapnel anchor on most bottoms. Grapnel anchors are convenient as they collapse into a compact package and are light in weight but they are the least effective anchor you can use. Kayaks are light and provide minimal windage so one can get away with using them most of the time.  Larger anchors are needed for larger boats usually due to increase in windage and not the greater weight.

I have never kayak fished in a river, but am going to give it a try.  I would like to know about some of the hazards in kayak river fishing before going out.   So far the river rescuer divers advise was not to use an submerged  anchor system on a kayak.   The reason is that large submerged debris (logs/large branches) going down stream can catch your anchor rope and cause your kayak to be dragged under as it passes under your kayak. They suggest if you insist on anchoring to tie off rope to a over hanging tree or over hanging branch that way the only debris you have to worry about is the floaters which you can see as long as your bow is facing upstream. So if there are any well experienced kayak river fisher that has fished the Snohomish River - advice about safety and where to put in and take out will greatly appreciated.

I have never kayak fished in a river, but am going to give it a try.  I would like to know about some of the hazards in kayak river fishing before going out.   So far the river rescuer divers advise was not to use an submerged  anchor system on a kayak.   The reason is that large submerged debris (logs/large branches) going down stream can catch your anchor rope and cause your kayak to be dragged under as it passes under your kayak. They suggest if you insist on anchoring to tie off rope to a over hanging tree or over hanging branch that way the only debris you have to worry about is the floaters which you can see as long as your bow is facing upstream. So if there are any well experienced kayak river fisher that has fished the Snohomish River - advice about safety and where to put in and take out will greatly appreciated.

That's exactly the reason to use a system similar to the one bsteves suggested: http://www.northwestkayakanglers.com/index.php?page=26

With this system, you have a means of releasing yourself from the anchor very quickly.  A lot of us use this system in the winter, while fishing for sturgeon.  It's not uncommon at that time to see entire trees floating down the river.  You still need to pay attention but it allows you to get away from a dangerous situation quickly.

One of the biggest threats while anchoring is getting caught in a "bite" of rope.  If your anchor line gets wrapped around any part of you, it has the potential to pull you underwater.  DON'T LET THIS HAPPEN!  Always practice good line management and keep a safety knife attached to you so you can cut yourself free.

-Spot-