BBC Profile:
Until 1983 this seat ringed Doncaster entirely, incorporating a large area of mining villages. Only after boundary changes that year did the Labour vote fall below 50%. But it recovered and by 1992 Martin Redmond held a majority of more than 13,500.
Further boundary changes in 1995 nearly halved Labour's notional majority to a little over 7,000. Martin Redmond died just before the 1997 election.

Caroline Flint became the constituency's first female MP, winning 58% of the vote and a majority of nearly 15,000. And, despite a steady revival of local support for the Conservatives and the Liberal Democrats, Ms Flint held on to her seat in 2005 with a majority of 8,598.

At this election, the constituency loses one part-ward to Doncaster North (Sprotbrough) while the wards of Thorne and Conisbrough and Denaby are now fully in the seat. To find out what might have happened had these boundary changes been in force at the last election, see a notional - or estimated - result below.

Don Valley constituency encircles the South Yorkshire town of Doncaster to the south and east. It also includes the town of Thorne.

A former coal mining area, its last pit, at Rossington, closed in 2007.

The biggest employers now are the local authority, the prison service, the NHS and a number of call-centre operators. Polypipe, which makes specialist plastic tubing, has its headquarters here. Engineering still continues in Doncaster, and efforts to attract new industry have me

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BBC Profile:
Until 1983 this seat ringed Doncaster entirely, incorporating a large area of mining villages. Only after boundary changes that year did the Labour vote fall below 50%. But it recovered and by 1992 Martin Redmond held a majority of more than 13,500.
Further boundary changes in 1995 nearly halved Labour's notional majority to a little over 7,000. Martin Redmond died just before the 1997 election.

Caroline Flint became the constituency's first female MP, winning 58% of the vote and a majority of nearly 15,000. And, despite a steady revival of local support for the Conservatives and the Liberal Democrats, Ms Flint held on to her seat in 2005 with a majority of 8,598.

At this election, the constituency loses one part-ward to Doncaster North (Sprotbrough) while the wards of Thorne and Conisbrough and Denaby are now fully in the seat. To find out what might have happened had these boundary changes been in force at the last election, see a notional - or estimated - result below.

Don Valley constituency encircles the South Yorkshire town of Doncaster to the south and east. It also includes the town of Thorne.

A former coal mining area, its last pit, at Rossington, closed in 2007.

The biggest employers now are the local authority, the prison service, the NHS and a number of call-centre operators. Polypipe, which makes specialist plastic tubing, has its headquarters here. Engineering still continues in Doncaster, and efforts to attract new industry have met with some recent success.

The former RAF Finningley site has been transformed into Robin Hood Airport Doncaster-Sheffield, which opened in April 2005 following a lengthy campaign, creating many jobs and increasing its passenger numbers as it became established.

Rallings & Thrasher Notional:
Lab 21,674 (56.52%)
C 10,341 (26.97%)
LD 6,330 (16.51%)

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