Divine Nexus

For the duration, you sense the presence of Chronomagic Nexus points within 5 miles of you. If you sense a nexus in this way, and have a map or atlas in your possession, you can use your action to mark the nexus point on the map.

The spell can penetrate most non magical barriers.

If cast at a higher level, detection ranges increases by 5 miles per level.  (Example: 15 miles at level 4)