I am trying to plan a trip into the Ham, Snipe, Cross Bay, Rib lake area using enter point 50, 51 or 52. Can anyone tell me if these lakes are good fishing lakes?

Those lakes are not to well known for there fishing. That Long Island(Doe) lake has northern and lake trout if you were to keep going. Check the conditions on those lake since they were burnt badly during the Ham lake fire. Otherwise, there are a lot of good lake trout lakes near those if you really want to get into fishing.

Try the DNR Lakefinder surveys
www.dnr.state.mn.us/lakefind/index.html
I'm not sure how updated they'll be for those lakes, but they are usually a good start for basic info on fish census data for lakes.