Cool beans. I've started a new Google Map for Potential Courses
so we can see sites in map form ourselves. Andrew, can I put a link in your first post so people can find the map more easily? I'll try to update the map as more sites are scoped out, though if others want to tinker with map as well, just let me know and I can set you up as a collaborator.
As to the sites so far, Petrovisky does look to have some potential. As you pointed out though, there looks like a lot of alders there, many ready to come down. If we were to work with that site, we'd want to try to plan accordingly and not try to feature too many alders in the fairways. Parts of Terrace used to be far woodsier (and interesting) before all the alders started falling there. A lack of blackberries certainly bodes well to me. Good call about drainage too, though on the plus side, today would probably be a good example of some of the soupiest conditions with all the rainfall yesterday.
As to the place north (which I dubbed Maple Heights), I agree power line cuts aren't the most ideal spots, but I could see potential for holes shooting from the field into the woods and vice versa. Is there potential for parking around there without disturbing the neighbors too much?