Early Rocky Mountain Road frame.

From what I understand Vitus had arrangements with many bike manufacturers Peugeot, Motobacane, Mercier, French-Loire, Gitane, Bertin, Cilo, Bertoni, and a bunch of others.

Here's a decent resource if you're interested. https://on-the-drops.blogspot.com/2016/12/the-peugeot-px-10du-vitus-979.html?m=1

I'd have to assume that there would have had to have been some sort of licensing agreement, especially because they were co-branded.

I'm located in southern Alberta, I picked this one up out of Calgary.
 
maybe they had a commercial arrangement with RM?
This is the most logical explanation. Vitus would have benefitted from RM's Canada-wide distribution network for their product. Putting the RM decals on the HT & ST was likely part of the distribution aggreement. While one of the above links had RM on the downtube you'll see the others only limit it to the HT & ST decals. My own recollections at my LBS also match - just HT & ST decals.
 
Hello! Glad I found some other people with the same issue I am having. Just grabbed this Rocky Mountain/Vitus bike the other day and it’s a battle to find info. Mine looks a lot like the ones you guys posted but also has a Rocky Mountain frame decal! IMG_0977.webp IMG_0987.webp
 
Seems like it, didn’t mask off most of the components though which is weird, original looks to be white. There is also a Vitus sticker on the frame behind the seat post.
From the limited research the is to find on these, I'd guess that your's is a later frame. The seat cluster/binder changed in 85 and they added a second set of bottle cage bolts a few months after that (or something). Mine is an example of an earlier made frame.

Super cool to see another one.
 
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