I've mapped the whole lake, for the most part you are safe. Below are a few of the prop eating locations:
- The spine that runs NNW off the island NW of the Rolling Hills connection (south end) tapers really gently to deeper water, stay well off the shore if you are going to run past it (See Google Earth);
-Many of the islands on the west shore have shallow connections to the shore, go slow around them (most islands in general be cautious around);
- The big eastern bay has a gravel bars connecting many of the islands at the entrance to the shore or larger islands (look at Google Earth you can see them) and some mid-bay humps, i wouldn't rip around it at full throttle, and
- There is a reef that runs up the lake in front of the cottages about a km from the east shore. One of the humps toward the north end could be shallow enough to remove a lower end if the water level is lowered (fine now about 4 feet deep, but be aware of it, someone typically place buoys on it).
and X3 for the wind and subsequent waves, my GF still talks about the time "she almost died at Newell"