I am working on getting my 19 year old in better shape. I know hills are really great and I used to do them quite often. But I have moved to a location that is as flat as a board. We have a man-made mound back in the woods but I think it would require going up and around and down it over 100 times before it realy did much of anything (it is very small) and even still, I doubt I would see much improvement from that.
Ideally I will be getting a trailer soon and can trailer out to places that have more hills, but until then, I am stranded for the most part (unless someone with a trailer decides to go out). What other exercises are good alternatives to get the same topline/ and hind end muscles?