Castlemartin, Pembrokeshire be offered to Flimston. In 2011, the MoD opened up a special diversionary route which was safer for walkers by protecting them from the range fire and preventing them for having to negotiate narrow country roads with fast moving traffic. The Church of St. Michael is a Grade I listed building. It contains a cross-inscribed stone pillar of the 7th century-9th century. Currently, the church is closed. Census population of community 496 (1801): 528 (1851): 460 (1901): 243 (1951): 147 (2001). Castlemartin, Pembrokeshire Castlemartin () is a village in (and giving its name to) the Castlemartin Hundred, Pembrokeshire, Wales. It
Pembrokeshire to its proximity to the relatively warm Atlantic Ocean. Inland, average temperatures tend to fall 0.5 °C for each 100 metres increase in height. The air pollution rating of Pembrokeshire is "Good", the lowest rating. The rocks in the county were formed between 600 and 290 million years ago. More recent rock formations were eroded when sea levels rose 80 million years ago, at the end of the Cretaceous Period. Around 60 million years ago, the Pembrokeshire landmass emerged through a combination of uplift and falling sea levels; the youngest rocks, from the Carboniferous Period, contain the Pembrokeshire Coalfield. The