The kingdom of Maryul is described in the Ladakh Chronicles to consist of:
Mar-yul of mNah-ris (Leh district), the inhabitants using the black bows; Ru-thogs (Rutog) of the east and the gold mine of hGog (possibly Thok Jalung); nearer this way lDe-mchog-dkar-po (Demchok Karpo);
at the frontier:
Ra-ba-dmar-po (possibly Rabma, halfway between Rudok and Spanggur);
Wam-le (Hanle), to the top of the pass of the Yi-mig rock (Imis Pass);
to the west to the foot of the Kashmir pass (Zoji La), from the cavernous stone upward hither,
to the north to the gold mine of hGog;
all the places belonging to rGya (Gya, on the frontier between Leh and Rupshu).

The description makes clear that Purig (the Suru River basin near Kargil) was included in Maryul, but Zanskar to the west was not.
The latter went to the third son Detsukgon along with Lahul and Spiti.
The Rupshu highland was regarded as the frontier between Maryul and Zanskar.
Baltistan to the north was also not included in Maryul.

The southern border of Maryul towards Guge is much harder to discern.
Demchok is mentioned as a region within Maryul, but not placed on its frontier.
If we run a line due east from the Imis Pass (32.3820°N 79.0173°E), it would include Tashigang (Zhaxigang), Gar (Shiquanhe) and much of the Sengge Zangbo river basin within Maryul.
A. H. Francke includes in his book a sample map, where this kind of a border is shown, running slightly to the north of Gartok.
In his view, the second heir Trashigon received "a long and narrow strip of country along the northern slope of the Himalayas, of which Purang and Guge are the best-known provinces".
Maryul encompassed all the areas to the north of this narrow strip.
The kingdom of Maryul is described in the Ladakh Chronicles to consist of:
Mar-yul of mNah-ris (Leh district), the inhabitants using the black bows; Ru-thogs (Rutog) of the east and the gold mine of hGog (possibly Thok Jalung); nearer this way lDe-mchog-dkar-po (Demchok Karpo);
at the frontier:
Ra-ba-dmar-po (possibly Rabma, halfway between Rudok and Spanggur);
Wam-le (Hanle), to the top of the pass of the Yi-mig rock (Imis Pass);
to the west to the foot of the Kashmir pass (Zoji La), from the cavernous stone upward hither,
to the north to the gold mine of hGog;
all the places belonging to rGya (Gya, on the frontier between Leh and Rupshu).
The description makes clear that Purig (the Suru River basin near Kargil) was included in Maryul, but Zanskar to the west was not. The latter went to the third son Detsukgon along with Lahul and Spiti. The Rupshu highland was regarded as the frontier between Maryul and Zanskar. Baltistan to the north was also not included in Maryul.
The southern border of Maryul towards Guge is much harder to discern. Demchok is mentioned as a region within Maryul, but not placed on its frontier. If we run a line due east from the Imis Pass (32.3820°N 79.0173°E), it would include Tashigang (Zhaxigang), Gar (Shiquanhe) and much of the Sengge Zangbo river basin within Maryul. A. H. Francke includes in his book a sample map, where this kind of a border is shown, running slightly to the north of Gartok. In his view, the second heir Trashigon received "a long and narrow strip of country along the northern slope of the Himalayas, of which Purang and Guge are the best-known provinces". Maryul encompassed all the areas to the north of this narrow strip.
Maryul