Rosemound is one of the most recent cities to have ever been built on the coastal region of Equestria; that being said, it also happens to be no different from the other communities that came before it, be if the royal capital or the humble heartland itself.

Speaking of which, Rick and Morty end up here from another dimension, one similar to this one except with more lifeforms and technological advancements after a crash landing leaves the two stranded, causing the former to send out the latter on a trip to a hardware store.

Little did the old pony had known, the younger one ended up getting sidetracked and came across another visitor: a Filly Guide by the name of Tag–A–Long whom came here earlier with her scout troop yet is here all out on her lonesome; even so, they'd both found themselves having the time of the lives only for it to be cut short due to it being wasted.