The landscape we see today in North Pembrokeshire has a surface shaped by man over recent time periods and an underlying geological structure of rocks whose origin is extremely old. In some areas the rocks of the Pre-Cambrian age up to 650 million years ago can be seen. At Pwll Caerog farm the rock structure dates from the Ordovician period approximately 490-440 million years ago. They are composed of the volcanic ash and lava and mudstone sediments all last down under water.

Pwll Caerog farm has been a large and important agricultural property on the north Pembrokeshire Coast for several hundred years. It is still it’s original size of approximately 250 acres and after various agricultural ownerships and development, particularly both for dairy farming and arable crops, it was acquired by the National Trust in 1991.

Our Knowledge of the early medieval years is not complete. From 1115 the Norman Kings controlled the appointments of the Bishop of St Davids. The Bishops controlled an area from St Davids to Fishguard known under the old Welsh name as ‘Pebidiog’. Outside this area Norman – French and Flemish settlements were established to control the original Welsh lands. the name we have today show the extent of the settlements – Pointz Castle from Ponch, Rickeston from Ricard, Puncheston from Ponchardon, Letterston from Lettert, just a few of the many examples.

Undoubtedly, Roman galleys patrolled the western seas of the British Isles, but there is no records of the actual Roman settlements in North Pembrokeshire. Claudius in 168AD recorded the “Octo Promontorium” of Pembrokeshire in his geographical records, referring to the headlines of the St David’s peninsular.

Into the warming and undisturbed landscape came early man as hunter gatherers. Living and moving these early inhabitants have left little trace of their presence in North Pembrokeshire. This period referred to as the Mesolithic era from the end of the Ice Age down to the early stone age culture (8000-3000 BC)