Grimshaw
      |
 Saddle Hills                                 Ft. McMurray
      |                                            |
Grande Prairie - Valleyview                   Mariana Lake
      |                   Athabasca          /
 Grande Cache    Whitecourt   |    Willingdon --- Cold Lake
             \      /         |  /
              Hinton <-> Edmonton --- Vermillion
             /                |      Clive       \ Lloydminster
      Jasper                  |    /
            Sylvan Lake - Red Deer <=> Wimborne --- Delia
       Limestone Mtn.       /
                      \    |
              IPARN --- Calgary
                      /         \
           High River             Brooks
                                /       \
                     Lethbridge           Medicine Hat
                            /  \
                  Milk River    Sweetgrass

<----> Link to Yellowhead system | Activating link to these systems brings
<====> Link to Wimborne system   | all external system VHF drops online...