Interesting, thanks, I'll have a look at Mapbox terrain RGB. Will be interesting to see the resolution of a LIDAR tile set if Mapbox are going to have one, I've

Interesting, thanks, I'll have a look at Mapbox terrain RGB. Will be interesting to see the resolution of a LIDAR tile set if Mapbox are going to have one, I've found that I could sometimes find low-resolution free data (5M / 10M etc), but that higher resolution 25cm/50cm/1M etc was often commercial and very expensive, but that gives much more accurate results in city areas. I'll have a look at Nextzen also.