The Concrete Pillars On Top Of British Hills: Trig Points Tom Scott 1:43 9 years ago 504 234 Скачать Далее
Amateur Radio Trig pillars visited and details of construction G4NQX Ham Radio 3:10 1 year ago 51 Скачать Далее
Trig points (triangulation pillars) - #BlairvadachBytes Blairvadach Outdoor Education Centre 3:24 3 years ago 4 901 Скачать Далее
Unlocking the Secrets: Trig Points and their Forgotten History Sam Walks a Lot 5:35 5 months ago 645 Скачать Далее
Harland South trig pillar - from above.... dji mini 2 hill's wild camping 1:27 1 month ago 50 Скачать Далее
Tales From The Village Trig Pillar (#30DaysWild) Fenland Coddiwompler 10:44 2 years ago 93 Скачать Далее
Peak Districts, Lost Trig Point, How To Find Peak Districts Missing Triangulation Pillar 88/88 Another Day Another Walk 10:23 2 years ago 1 121 Скачать Далее
The Peak Bog Persons Christmas jaunt to Black Hill Trig Pillar 2017 HalfwayHike Hiking blog 0:43 6 years ago 17 Скачать Далее