It is pretty much that, if you live close enough to spawn. Imagine a ring where 4 of the inside points are 500, 0; 0, 500; -500, 0; 0, -500 and the outside points are 1100, 0; 0, 1100; -1100, 0; 0, -1100. If you drew a circle from those points, at least some part of all 3 of the strongholds...