Milecastle 41

Milecastle 42 (Cawfields) is a milecastle on Hadrian's Wall (grid reference NY7157466692).

Milecastle 40 (Winshields) was a milecastle on Hadrian's Wall (grid reference NY74566758).

Melkridge is a village and civil parish in Northumberland, England, on the river South Tyne. The village of Melkridge is in the south of the parish, and is about two miles (3 km) east of Haltwhistle along the A69 road. At the 2001 the civil parish had a population of 212, increasing slightly to 216 at the 2011 Census.

Unthank Hall is a Grade II listed property now serving as commercial offices, situated on the southern bank of the River South Tyne east of Plenmeller, near Haltwhistle, Northumberland. In the 16th century the manor was owned by the Ridley family and it is possible that the bishop and martyr Nicholas Ridley was born there. The house, which was built in the 16th century, incorporating an ancient pele tower, was substantially remodelled and extended in 1815. The Hall came into the ownership of the Dixon family of Belford Hall, and then by marriage to the Browns. Dixon Brown (1776–1852) changed his name in 1825 to Dixon Dixon. The house was substantially remodelled in 1815. His nephew Rev Dixon Dixon Brown [JP, DL, MA] (1826-1901) rebuilt the Hall between 1862 and 1865, in a neo-Tudor style, both times by Newcastle architect John Dobson. Dixon Dixon Brown was educated at Rugby and Exeter College, Oxford. He sold Unthank Hall in 1897. Much of the 1865 house was demolished by further alterations in 1900, and a significant reduction in size was made in 1965.

The Haltwhistle Burn is a river which lies to the east of the Northumbrian town of Haltwhistle. Rising in the peaty uplands below the ridge of the Whin Sill, the burn passes through the Roman Military Zone south of Hadrian's Wall and through a dramatic sandstone gorge before descending between wooded banks to the South Tyne Valley. The Haltwhistle Burn drains an area of approximately 42 km2. Today, the Burn is a haven for wildlife and a popular walk for residents and tourists but from Roman times until the 1930s the combination of valuable minerals and water power attracted a succession of industries which provided goods and employment to the town.

Once Brewed (also known as Twice Brewed or Once Brewed/Twice Brewed) is a village in Northumberland, England. It lies on the Military Road (Northumberland) B6318. A motorist arriving over the B6138 from the east will see the place name shield "Once Brewed", while those coming from the west will read "Twice Brewed". Once Brewed lies just south of Hadrian's Wall, which runs along the top of the Whin Sill ridge above the village to the north. The Roman fort of Vindolanda is a couple of miles away to the south-east. The Roman earthwork known as the Vallum runs right past Once Brewed, adjoining and also overlain by the Military Road.

Haltwhistle Castle Hill is a ruined Norman earth and timber ringwork fortress in Haltwhistle, Northumberland, England. There are no extant stone remains.

Plenmeller is a village and former civil parish, now in the parish of Plenmeller with Whitfield, in Northumberland, England about a mile (1½ km) southeast of Haltwhistle. In 1951 the parish had a population of 107.

Aesica (modern name Great Chesters) was a Roman fort, 1.5 miles (2,400 m) north of the small town of Haltwhistle in Northumberland. It was the ninth fort on Hadrian's Wall, between Vercovicium (Housesteads) 6.0 miles (9.7 km) to the east and Banna (Birdoswald) 6.5 miles (10.5 km) to the west. Its main purpose was to guard the Caw Gap where the Haltwhistle Burn crosses the Wall.

Lees Hall Roman Camp is an archaeological site, a Roman camp near Hadrian's Wall, in Northumberland, England. It is near Haltwhistle and adjacent to the B6318 road.

Milecastle 43 (Great Chesters) was a milecastle on Hadrian's Wall (grid reference NY70356684). It was obliterated when the fort at Great Chesters (Aesica) was built.

Unthank is a village near Haltwhistle in Northumberland, England. It is first mentioned in writing as Unthanc around 1200.