Image: Iravatham Mahadevan
Image: Iravatham Mahadevan

In this symbol, we see two roads converging, but the point where they should meet is blocked. It is an ideograph for the noun ravine.

Illustrative Text Reference:

Mohenjo-daro: Seal: M-626 a: Sayid Ghulam Mustafa Shah and Asko Parpola, 1991: Corpus of Indus Seals and Inscriptions: Volume 2: Page 7: Collections in Pakistan: Suomalainen Tiedeakatemia.

Image Credit:

Indus Script Sign Number 4001: Sign List of the Indus Script: Iravatham Mahadevan, 1977: The Indus Script: Texts, Concordance and Tables: The Director General Archaeological Survey of India.