I thought this was handy, but the only one I saw all day was 200 metres from the start of the trail. They should put them at the remote bits of the trail. Actually my phone does that so its only useful if you are using a paper map. So they are useless.
Camera Details: SONY, DSC-RX100 Settings: 1/100 at f/2, ISO 125, 10 mm Date: 07 March 2017 Time: 10:33:51