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Pgd81

Mapper since:
March 06, 2012
Last map edit:
April 22, 2025

Latest Diaries

Very impressed with Vespucci

I’m a bit behind the times with smartphones. I only got my first a couple of years ago, a small-screened, low-powered model on a cheap-ish contract...

2 comments August 27, 2014

London's contours and lost rivers

Is it bad form to write 2 diary entries in one day? Possibly. But the network drives in the office have conked out, and it’s Friday afternoon, an...

2 comments May 17, 2013

Mapping Croydon

Croydon takes a lot of stick – it was heavily bombed during the war, with any remaining traditional aesthetics being destroyed in the ’60s under a ...

9 comments May 17, 2013

Croham Hurst, or, Experiments with Multipolygons

I recently surveyed the main paths at Croham Hurst, a tree-covered hill with two bare caps at the peak. It’s a beautiful, peaceful spot (and desig...

3 comments May 25, 2012