An interesting ind Adam. It looks like the pine trees have been milled and that unofficial trails have been set up.. I assume that as time goes on most of these trails will be overgrown and slowly fade in the heat map. I removed one section of trial not visible in esri or the heatmap and realigned two to Strava (the e-w track just south and the nw-se track to the east). It does need a reccy but not on cold wet day!