intervisible

/ˌɪntərˈvɪzəbəl/
adjective
  1. Describing two points or places from which each can be seen from the other, without anything blocking the view.
    • From the tower and the hilltop, the villages are intervisible across the valley.
    • Surveyors checked that the markers were intervisible before setting up their equipment.
    • The two mountain peaks are intervisible on a clear day, with no ridges in between.