Haystack Catena
| Feature type | Catena | 
|---|---|
| Coordinates | 4°42′N 46°12′W / 4.7°N 46.2°WCoordinates: 4°42′N 46°12′W / 4.7°N 46.2°W | 
| 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 actually a chain of overlapping secondary craters.[1] It was named after Haystack Observatory.
References
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