It is worth noting that there are set locations for an elite to spawn, whether it is a rare, champion, or superunique. However, D3 has no internal rules on how many spawn points can actually spawn an elite pack, which lends much more danger to certain areas than others.

As an example, shown in the image below, it isn't uncommon to spawn two different elite packs in one small area within the [[Halls of Agony]]. The image depicts a rare cultist pack spawn in addition to a champion berserker spawn. Also, the mid-western side of the [[Desolate Sands]] zone is particularly deadly, with three or more elite packs spawning at once not being an uncommon sight.