Well, yes, there are. Originally I had thought these were map design features, but apparently not - they are "bugs".
So, I'll post all the instances where you can cap from garrison (with map name), in hopes that either relic can fix them, or state if its actually a feature.
If others want to add (either text or image), I'll add them to this post (and take pics if needed).
(4-6) Oka River Winter: