Concept
Concentric Dhāmas around Śvetadvīpa
Part of Goloka

The chart uses a second arrangement outside : Mathurā, Jagannātha Purī, and Dvārakā are shown as concentric sacred regions. This is not a replacement for the three Kṛṣṇaloka divisions. It is an additional visual layer used to gather several sacred dhāmas into one chart.
Concentric regions around the complex
It shows the tradition distinguishes between "mood" (the Gokula/Mathurā/Dvārakā of feeling) and "place" (this concentric geography) — two different kinds of map layered on the same territory.
Source: Standard Gauḍīya/ISKCON Goloka-Chart explanatory tradition · Chart / explanatory traditionIt helps to keep this separate from the Gokula–Mathurā–Dvārakā teaching. One is a theological division of Kṛṣṇa's līlā; the other is a visual geography used by this poster.
Mathurā
The city of appearance — where the eternal chooses to become historical.Jagannātha PurīTied to Caitanya Mahāprabhu's Purī pastimes
Where Caitanya Mahāprabhu's own pastimes anchor devotion in a specific, visitable place — the abstract made walkable.Dvārakā
The outermost ring here — majesty holding the perimeter.