Collin is a small village between Dumfries and Gretna in Dumfries and Galloway, Scotland.

[1] It is located on the Lochar Water, and the A75 road.

It lies 5.3 km east of Dumfries, and 20 km north-west of Annan.

Rockhall Tower, a castle once owned by the Grierson baronets, is in Collin.

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