ottomatica Lino Lakes, MNPosts: 1380 April 26, 2009 at 2:18 am #771135 My 2007 or 2008 chip has them. Were you reading it right? The wing dams are just lines, not shown as contours. I am using a Lowrance GPS but I don’t think that matters.
kris_brantner My riverPosts: 1678 April 26, 2009 at 2:55 am #771139 i ahve them programmed into my humminbird, but they show up as thin white lines. i have to get my nose about an inch away to see any. that is on pool 4 anyways
andyb Farmington, MNPosts: 139 April 26, 2009 at 4:41 am #771151 I have the same problem. My 09 chip shows no evidence of wing dams at all and if it does all it says is “rock hazard”