Ariel Photograph of Property- help

This year for Christmas I want to get my Dad an ariel photograph of our ranch, but i'm not having any luck finding a place where I can get a hi-res picture that can be blown up. I want use it as a map for our deer stand locations, so each hunter can flag the stand they are hunting. Any ideas as to where I might find something like that? A few years ago I got a pilot to fly over our place and take pictures, but he never got one of the full property. Here are a couple he took. Any help is appreciated!