The old railway track bed soldiers on South, under the somewhat oppressive short tunnel and ends up here, obviously once a siding but now having the local sewage farm as its close neighbour. Don't be put off, as we all produce what it processes!
A well-kept process - like this one - hardly smells at all and the site workers should be congratulated for doing a good job that most would shudder at.
Stop...well of course, what else is it there for?