The sea levels having risen and stabilised around 9,400 BC leaving L’Ancresse looking similar to the current day situation with the sea to the north and west. Part of a tidal island, originally separated from the rest of
Guernsey by the
Braye du Valle, a tidal way that could be crossed at low tide. L’Ancresse was the only part of the tidal island that did not form part of the Fief St Michel, the land granted to the Abbey of
Mont Saint-Michel in the 10th century, it remained common land, belonging to the King. In the 1309
Assize Roll, a number of defendants were accused of encroaching upon the common land. • Les Fouaillages – burial mound – 6,500 years old Archery practice was undertaken on the common for centuries by the
Guernsey Militia, limited defences were built, the main defence for the north of the island being the
Vale Castle 18th and 19th centuries The threat of invasion from France resulted in the construction of seven
Guernsey loophole towers at L’Ancresse, numbered 4 to 10, the towers originally being manned by the
Royal Guernsey Militia. Other forts and batteries were also erected:
20th century Around 1931 a proposal was put forward for the construction of an aerodrome on L’Ancresse, with three 720–850 yard runways. • Anti-tank walls at Ladies Bay, Pembroke and L’Ancresse bay. • Anti-aircraft battery containing six L401 bunkers for 8.8 cm guns with an L403 fire control bunker and an L405 radar bunker. • Anti-aircraft battery in two Fl242 emplacements in Marine Stp Großhügel (Marine strongpoint) and a radar emplacement. • Jägerstand casemates containing 10.5 cm French guns. • Anti-tank 676 casemates for 4.7 cm Festungspak 36 (t) guns such as in Wn Dohlenturm on the eastern end of L’Ancresse bay. • Trenches and machine gun positions. • Naval range-finding tower (Marine Peilstand 1) (now buried in quarry) • Personnel bunkers For the millennium, a 20 ft stone, found in the bay, was erected as a menhir on a hill in 1999 and unveiled by Queen
Elizabeth II. The stone and Her Majesty appear on a postage stamp to commemorate the
Golden Jubilee of Elizabeth II. ==Usage==