[1] The milecastle contains the remains of a small barrack block in the east half which survives to 1.0 metres high.

[1] Excavations in 1988-9 showed three periods of the north gate, having been built, blocked, then partly demolished.

Turret 37A (Rapishaw Gap) (grid reference NY78056861) was located by exploratory excavation in 1911.

[2] Turret 37B (Hotbank Crag) (grid reference NY77586847) was also located by exploratory excavation in 1911.

[3] The milecastle, and the sites of both turrets are accessible via the Hadrian's Wall Path.