I initially read the title as 55,000 one pound stones. I was thinking, huh that does seem like a lot of work. (>▽<)

Or 3928 stone stones

https://en.wikipedia.org/wiki/Stone_(unit)

Or about 3 double-decker buses for the length of 171 footy pitches.

For anyone confused, British people would generally use tonnes (or tons, but maybe not know the difference exactly) and miles.