TJ:

I don't know what it costs, but some things that I'd be curious about is:

What resolution are the pictures? If you get digital copies, can they be blown up for greater detail if needed?

I don't know what you are looking for in a picture, but I think that a couple of pictures that are taken at an angle might be just as interesting as one taken from straight up. You'll be able to see the elevation changes better.

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