How to install deer fencing in granite boulders?

[dragoneggs]

If beauty is not the issue I would use buckets or large plastic pots fill them with concrete with embedded fiberglass post. Then set them just anywhere they need to be, anchor the corners and electrify them with poly line. 7/8" Fiberglass Rod Posts - Gallagher Permanent electric fencing components

That is a nice portable and flexible solution eliminating the need to penetrate hard rock! I like it.