Brockley Hill Station:The cache is a 35mm film cannister containing a logbook, but no pencil sorry. There is space for 1 or 2 cars parking nearby and though this makes an ideal cache n' dash, please take time to examine viaduct itself.
I am unsure of the land ownership of the site itself and the remains have sadly been subject to graffiti/vandalism, which is why this is a micro and not a larger cache. It appears there is, or once was, a car boot held at the site and the area of the viaduct used for parking which is accessible by foot. However it seems that the land has been taken over for a project to build a man-made flood plain just beyond the viaduct.
At time of publishing the cache contains a micro FTF compass prize
Brockley Hill Station
This Ghost Station differs from the other ghost stations of the series due to the fact it was never actually built. It was started in the late 1930's according to Wikipedia, and work stopped on the outbreak of World War 2 and the Northern Heights project was abandoned.
From the Wikipedia article:
The viaduct arches were partially demolished, leaving stumps of brickwork in a field. Earthworks from the station site parallel with the bypass indicate the route to Elstree South. Recent development will see increased population, the Stonegrove estate being redeveloped to double its housing density. Despite this, there are no plans to revive the extension to the station to serve them so the arches remain as a relic of the abandoned works.
All across London and the suburbs there are a number of disused railways and tube stations along with partial or complete tracks and platforms with varying overgrowth of surrounding vegetation.
Some of these stations have been closed indefinitely, others have fallen into disuse through transport authorities negligent policies. But the fact that some of the signs and other furniture are still there even up to 50 years and beyond is fascinating.
Hopefully, a cache at these locations will help everyone to create an informal geocaching map of what the rail and tube network used to look like and perhaps make you wonder why they don't run trains in these locations anymore.
Wikipedia List of Disused Stations across London: Disused Railways Disused Underground Closed Underground Closed Railway Stations
Underground History - Someone who has the disused underground in great detail and provided lots of pictures.
Abandoned Stations - Edgeware to Bushey Heath
Ghost Tube sign image generated with the help of London Underground Sign Generator and Gimp