Many times, these locations are consistent producers during all months, yet others are specifically good for ice and not during the bulk of the open-water period. The latter types include shallow transitions from mud to sand, or sand to rock, as well as small gravel or rock patches marooned again in shallow weeds or non-like surrounding substrates.
Early ice fish push to these places, especially after sundown in clear-water systems. Spots that are no larger than a kitchen table can seem impossible to drill out and find, while they stick out like a sore thumb once you drop the camera needed to discern sand grains from gravel.
Basic sonar technology is a great asset to ice anglers during the summer and fall months, as few things hide from it, even in heavy weed cover or timber. Even if you don’t own this technology, chances are you know someone who does, or better yet, invest in a unit that does both sonar and GPS so your ice spots will transfer to summer and vice versa. Spend time getting to know the system in either case, and make sure to idle at the proper pace to provide the very best image you can.