The Roxbourne

The Roxbourne Yeading Brook in the lower reaches
The Roxbourne in South Ruislip
Data
location	London Borough of Harrow , London Borough of Hillingdon , England
River system	Thames
Drain over	Yeading Brook  → River Crane  → Thames  → North Sea
source	at South Harrow, 51 ° 34 ′ 9 "  N , 0 ° 21 ′ 58"  W.
muzzle	in Yeading Brook coordinates: 51 ° 32 '45 "  N , 0 ° 24' 57"  W 51 ° 32 '45 "  N , 0 ° 24' 57"  W.

The The Roxbourne is a watercourse in Greater London . It arises in the London Borough of Harrow in the district of South Harrow and flows in a south-westerly direction through South Ruislip . There it runs underground from a point northeast of Field End Road to a point just southwest of the subway line in the southeast of South Ruislip subway station. After its return to the surface it was given the name Yeading Brook , into whose main arm it flows south of the A40 near the RAF Northolt airfield .