#Alongthewallin80days - Day 66
Turrets 24 A & B to Turrets 20 A & B
As we already know, every milecastles has 2 associated turrets. Lets find out more about the turrets that run between milecastles 24 and 20.
Turret 24A (Green Field) is now located beneath the B6318 Military Road, though it was excavated in February 1930. Remains of its masonry were three courses high on the north west corner, gradually reducing to one at the other corner.
map: 55.018791°N 2.071083°W
Turret 24B (Tithe Barn) is now located beneath the B6318 Military Road, though it was excavated in February 1930. Remains of its masonry, like those of Turret 23A, were three courses high on the north west corner, gradually reducing to one at the other corner.
map: 55.019083°N 2.078152°W
No surface traces remain of Turret 23A (Stanley Plantation).Its position was established in 1920, though its remains lie beneath the B6318 Military Road.
map: 55.015963°N 2.047949°W
No surface traces remain of Turret 23B (Wall Fell). Its position was established in 1920 purely by reference to the position of Turret 23A, though this cannot be confirmed as remains lie beneath the B6318 Military Road.
map: 54.993672°N 1.736733°W
Turret 22A (Portgate) is (all but the south wall) buried beneath the Military Road. The south wall is under a fence immediately to the south of the road and does not project into the field. Excavation in 1930 revealed that the masonry was four courses high on the west side and three on the east. The turret is of Standard A construction, indicating a change of builder since Milecastle 22. In 1850, a stone was found in the vicinity inscribed with the words Latin: "Fulgar divom" ("the lightning of the gods"). It is thought that this was set up where lightning had struck.
map: 55.013139°N 2.025240°W
Turret 22B (Stanley) was located in 1930, alongside the Military Road, 10 yards (9.1 m) to the west of the lane leading to Portgate Farm. There are no visible remains, the site being mainly covered by a modern road. The vallum around the area of Turret 22B was particularly well preserved, causing William Hutton to write ‘I climbed over a stone wall to examine the wonder ... was fascinated, and unable to proceed; forgot I was on a wild common, a stranger, and the evening approaching ... lost in astonishment, I was not able to move at all.’\
map: 55.014081°N 2.033184°W
Turret 21A (Red House) is probably located 73 metres (80 yd) to the east of the east wall of Onnum, though some doubt has been expressed by an English Heritage field investigation. Its remains lie under the modern road.
map: 55.010895°N 2.003081°W
Turret 21B (Fence Burn) is probably located partly beneath the military road, though the exact location has been speculated due to the presence of a small mound along with dark soil and pottery discovered in 1930.
map: 54.993672°N 1.736733°W
Turret 20A (Carr Hill) (grid reference NZ013687) is covered by the modern road, and the precise location is uncertain. It was apparently located in 1935 by pottery finds only.
Turret 20B (Downhill East) (grid reference NZ009686) is likewise covered by a modern road, and the precise location is uncertain.