Porton is a village in the Bourne valley, Wiltshire, England, about 5 miles (8 km) northeast of Salisbury.

[3][4] Built in flint with brick dressings under a tiled roof, the church has a nave with a south porch and bellcote, and a chancel with a vestry.

[6] In 1857 the London and South Western Railway company opened its line from Andover to Milford station at Salisbury, following the Bourne valley and passing southeast of Porton.

Porton Meadows is 17.6 hectares (43 acres) of botanically rich unimproved neutral grassland in the floodplain of the River Bourne, which has largely escaped intensive agriculture.

[10] A much larger area, 1,561 hectares (3,860 acres) extending into Hampshire and known as Porton Down SSSI, includes grassland, scrub and woodland; it constitutes the largest uninterrupted tract of semi-natural chalk grassland in Britain.