Haystack Catena
Feature typeCatena
Coordinates4°42′N 46°12′W / 4.7°N 46.2°W / 4.7; -46.2
EponymHaystack Observatory

Haystack Catena (Haystack Vallis until March 2013) is a catena at 4.7° N, 46.2° W on Mercury. It superficially resembles a graben but is a chain of overlapping secondary craters.[1] It was named after Haystack Observatory.

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