Bua - power that is gained or lost, depending upon actions.
Landscape has, as does everything else, both types.
Isolated hills, sea cliffs, etc., have higher intrinsic br . In fact, it is more complicated because humans deliberately pick high-br places for their religious and, less often, political centers, thus layering bua over the already existing br . While usually this occurs so that the bua develops the br , the opposite can occur. The Mallacht Dheal is, great curse of bareness, laid upon Teamhair by a coven of 13 Irish saints is an example. The site once had a great deal of both, but it now has fairly low bua, while retaining br in a form difficult, but not impossible, to access.