It serves as the boundary between the departments of Hautes-Alpes to the north and the Alpes-de-Haute-Provence to the south.

Additionally, it separates the Embrun region from the Ubaye valley.

[1] However, it is more likely derived from the pre-Gaulish (Ligurian) term "pal," which is common in the names of mountains and escarpments.

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