In 2009, one of the stages of the race started in Frome.
Details of the two stages of the Tour of Britain 2010 to take place in Somerset and Devon have been announced.
Stage four will start at West Somerset Railway station, Minehead and will finish in Teignmouth, Devon.
The following day, stage five will start in Tavistock, Devon and finish in Glastonbury.
The race has been held in Somerset for the past four years and last year generated £6m to the Devon and Somerset economy, attracting 250,000 spectators.
The two stages will be held on Tuesday, 14 and Wednesday, 15 September 2010.
Stage Four: Minehead to Teignmouth
The peloton heads off from West Somerset Railway, Minehead and runs through Wheddon Cross, Roadwater, Bilbrook, Blue Anchor and Watchet. The first Category 2 King of the Mountains climb of the day is on the B3190 near Raleighs Cross.
The route passes through Huish Champflower, Wiveliscombe, and Wellington before crossing the border into Devon.
On passing through Hemyock, Dunkeswell and Awliscombe, the riders face another Category 2 King of the Mountains Climb on the A375 heading out of Honiton, and then a Category 1 Climb at Peak Hill, Sidmouth.
The race then winds its way from Budleigh Salterton, Woodbury, to Starcross and Dawlish, before the stage finishes at Teignmouth seafront.
Stage Five: Tavistock to Glastonbury
This stage begins at Tavistock Town Hall, and soon after the riders will face their first challenge of the day, a Category 1 King of the Mountains Climb before reaching Princetown then across Dartmoor National Park.
As the route reaches mid Devon there will be a Sprint at Crediton before heading on to Cullompton, Willand and Uffculme.
A Category 1 King of the Mountains Climb at Coombe Hill near Hemyock sees the route head back into Somerset, taking in Staple Fitzpaine, Ilminster and Curry Rivel before another Sprint at Langport.
From there the race heads on to Somerton, passing through Butleigh before the stage finishes in Glastonbury.