Overend's Siding was opened when the line was opened, 18 November, 1875, to service Overends' farm. However only 4 months later a shelter was installed and the name changed to Mt Pleasant. I was unable to find the origins of this name - if you know, please get in touch with me. Very little can be found on the area, and no photos of the station exist. Mt Pleasant Station was eventually closed on 14 October 1968 and now no evidence remains of the shelter shed or platforms that were once here. It was actually located 60 metres towards Picton from the cache, but parking is terrible there (and only slightly better here).
Tracks are for trains. Do not go around the fence!

Mt Pleasant Station, 1990s
References:
Scoble, J: "Names & Opening & Closing Dates of Railway Stations,"published by the Rail Heritage Trust of New Zealand, 2010
Berry, K: "Tales from the Train", published by Marlborough Boys' and Girls' Colleges, 2000
Supporting the GeoKids program - my caches have treasure, makes them fun for kids to find!