The wildlife sanctuary island at the southern end of Glenwood lake is missing.

This is a major feature of the lake, and was created to give the bird life which the lake attracts safety from cats and foxes and other predators.

It's quite a significant feature of the lake (occupying about a fifth of the surface), so it's absence from the map is curious. I understand it is a no-go area for humans, to avoid disturbing breeding birds, but I cannot substantiate that from any online source.