I had a chance to capture some really nice Side Images using my Humminbird 997 during today’s Wissota walleye guide trip. Among them are images of what must be an old railroad that existed before Wissota was flooded in 1917.
In the first image, you see the railroad bed on the right image (with a beautiful set of parallel rails), and a whole bunch of bright white returns on the left side image. We’ll get back to those returns on the left shortly.
In the second image, I’ve taken the right side image of the railroad and rotated it 90 degrees clockwise. It seems pretty obvious to me that the rails sit on an elevated bed. The image is brighter white on the upper slope of the elevated bed because that’s the side closer to the boat; the side father from the boat is darker. The area noted by the green arrow looks like it’s either falling apart, or that there is a more pronounced change in elevation from the top of the bed to the bottom (like a nearly vertical portion) which would be hard to image very well, especially on the far side of this rise. Note also the feature noted with the red arrow. That sure looks like a small bridge to me, presumably over what used to be a small creek. You can even see the sonar shadows from the rails extending over this (one-time) creekbed.
The third image is a zoomed-in picture of the bridge over the creekbed.
The fourth image is an example of what we were catching in this area….at least some of those bright white returns on the left side image in the first pic are walleyes! The one on the right, held by my guest Chris, is a very healthy Wissota 22″, while my other guest Jim is holding a small Wissota slotter. Today was Chris and Jim’s first exposure to Humminbird’s Side Imaging technology, and after a brief tutorial, they were spotting fish left and right (pun intended! ).