I’m fairly sure there really is no specific scientific reason for naming them.
Unfortunately I don’t have source handy, but I believe I have read that.
The various structures were named many years ago, typically by some local guides/launch operators or just plain locals. They’d name a 2 mile or 3 mile from where they happen to leave shore, which of course will vary based on where you happen to leave from.
The names just stuck, and I suppose of greater interest is the naming of mud flats.
Matton, Resort flat, Pantry, Fletcher, Fishouse, Eileen’s, Purity, Dean’s flat, Agate’s Needle, the Rocket, Sharks Tooth, Bitcher Flat.
Names we still recognize today.
All of these names have a story behind them, and many were named by Joe Fellegy and another launch operation, the Barneveld Brothers back in the 1950’s early 60’s.
If you can get a copy of Tutt’s Walleye Whiffer map, there will be some old information with that.
And for those that want a great read about early Mille Lacs fishing, history, and great old stories…pickup a copy of Joe Fellegy’s book “30 Years on the Big Lake”.