Haystack Vallis

Haystack Catena

Feature type	Catena
Coordinates	4°42′N 46°12′W / 4.7°N 46.2°W / 4.7; -46.2Coordinates: 4°42′N 46°12′W / 4.7°N 46.2°W / 4.7; -46.2
Eponym	Haystack 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. It was named after Haystack Observatory.

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