Hey K3,

Back when I lived in Sioux City I fished it a couple of times...and wasn't that impressed. Hopefully you live closer because it wasn't worth the drive for me...

It's a spring fed fishery and the water stays pretty cool. You'll also run into a lof the worm-n-bobber guys while you're there - so your best bet is to wade up into the places with trees, shorten your cast to keep from getting hung up and keep throwing small flies.

Good luck - let me know how it goes...

Jim