Parts of the LOCATION@1 are also densely populated , particularly the triangle formed by the cities of LOCATION@2 , LOCATION@3 and LOCATION@4 , which also includes sizeable towns such as ORGANIZATION@1 and the ORGANIZATION@2 -- PERSON@1 -- Stapleford subconurbation .

Parts of the LOCATION@1 are also densely populated , particularly the triangle formed by the cities of LOCATION@2 , LOCATION@3 and Derby .
