Second Depths

The Second Depths area is used for soundings that have an attached attribute that stores an additional depth. This depth may be a second depth, as from a Shoals system, or a non-tide corrected depth, etc. Choose the attribute that represents the second depth from the Sec Depths menu in the Control Bar. Each second depth is shown as a wire-frame box or symbol, as shown in the Soundings with Second Depths figure above. If the Display > Show Second Depth Stalks toggle is enabled, a line is drawn between the original and the second depth.