Last time we wrote about the Cromwell Gorge section that we have been remapping. We chose to redo the aerial mosaics down this section from scratch for various reasons, but a part of that has been the discovery that the original placement of the historical photos in some places was most probably incorrect in that…

So here we have the first post on the Otago Central Railway for 2019. Last week I started redoing the Cromwell Gorge maps using the same 1962 historical survey images as previously, except this time sourced from Retrolens. They are a slightly higher quality, but the main change is harmonising everything with the other surveys…