As the caches come up in distance from your home, why not just put in a radius of, say, 40 miles from home, and just skip the first couple of pages of caches and then select the ones which are far enough away?
Or pick a point in the direction you are headed which is, say 40 miles away and use an address/zip code/postal code or whatever to give caches in say a 20 mile radius of this place. You could do several - north, south, east, west, whatever.
Sorry if I have misunderstood your question.