Hunting for Tremor Rams can be more difficult at times than hunting Battering Rams in La Thiene.
The lay of the land in the Highlands is much flatter and lack the deep valleys and crevices that are so prevalent in La Thiene. The cliffs and drops in La Thiene make the ram spawn area much narrower, and thus, much easier to manage when scanning and running.
But, a rampaging horn is needed to complete
Silence of the Rams, so, if you're gonna hunt rams, be sure to equip your rng job and have a couple of friends come along. No matter where you're hunting, ram horns and skins sell for good gil at AH, and it's even worth your time if you end up selling the stuff to npc.
We were able to pop Rampaging twice in one night in the span of about 2-3 hours. However, the bigger NM ram, Steelfleece, didn't show up all nite, his spawn time is prolly still in the early morning hours...