I believe that the original data from the OS is completetrigarchive.zip. Ian Harris created the trigpointing .uk website from that. The map references for the three trig points I used are from that website, and yes, you can walk up to those trig points and plonk your GPS device onto them. The problem, as I said, is that you don't know quite where they are.
The OS no longer use most of the concrete trig points scattered around the country, they use accurate GPS, in fact I believe that they sell some of their data to companies like Trimble and Leica, who sell it on for a hefty monthly fee. I think you are referring to their list of GPS stations. Regards Simon On Wed, Oct 9, 2019 at 11:49 AM Russ Garrett <r...@garrett.co.uk> wrote: > On Wed, 9 Oct 2019 at 11:40, Andy Robinson <ajrli...@gmail.com> wrote: > > Are you using trig points that are also OS Net station locations? > https://www.ordnancesurvey.co.uk/legacy/docs/gps/OSNet_GPSWebSite_Coordinates_File.txt > > Pretty sure that all those OS Net locations are actually fixed GPS > receivers rather than trig points, and so not something you can go and > plonk your GPS receiver on. The file definitely seems to list the > model of receiver at each one. > > Cheers, > > -- > Russ Garrett > r...@garrett.co.uk >
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