[pct-l] Postholer's Map Data

[Tim Umstead]

I was just looking at the PCT maps on Postholer and I could not find where
they get their data points.

Did they collect them?
Are they using Halfmiles data points?
Are they using someone else's?

I know Halfmile has the most update to data and accurate data points.
Postholer has better looking maps, but if the trail data is old and out of
date what good is it.