I have tested all variations of this mod whether with other mods or by itself. I have also attempted the mod "Slocan Lake (Raven creek and eerie country compatible)" in all variations as well. Whenever I head to the end of the highway north east of rosewood where the map would link up I am unable to enter the Slocan lake map. ]
When i start on the map itself and try to reach Knox country the map doesn't connect but instead I start heading up a strange left turn that isnt detailed on the Slocan lake map along with extreme lag.
If I teleport to the coordinates that the maps intersect I end up in Knox county but I am completely unable to return to Slocan lake I just end up in the void out of bounds of the knox country map when I attempt to teleport to coordinates in slocan lake.

Update: For reference to find where the map connects I have been using the online PZ interactive map with the new denver overlay. I do not know how old the website is but I imagine it is up to date