Grand Rapids area. Its more like rolling hills. Nothing is flat around here.
But I first took up biking at Michigan Tech, you know that little small college at the tip of the UP in the mountains, where in the winter if it gets above 0 F it is warm. I lived at the top a mountain. I would go to school early in the morning, coast down the hill at about 40 mph and be there in about a minute. There was no way I was stopping at the street at the bottom so I'd just hope there was no traffic. It was dark out but I'd still wear glasses because the cold wind in my face would make my eyes water anyway. One year when I was up there we had 330 inches of snow. The first bike ride I did was a 40 mile ride with my roommate to the campground at the very tip of the peninsula on the shores of Lake Superior. It is very nice in up there in the summer. Too bad not too many people know that.