The Aintree Grand National course is 4 miles and 4 furlongs and the race is run over 30 fences.

Fence 1 - Plain Fence
Fence 2 - Plain Fence
Fence 3 - Open Ditch
Fence 4 - Plain Fence
Fence 5 - Plain Fence
Fence 6 - Beecher's Brook
Fence 7 - Foinavon (small fence)
Fence 8 - Canal Turn
Fence 9 - Valentine's
Fence 10 - Plain fence
Fence 11 - Open Ditch
Fence 12 - Plain Fence
Fence 13 - Plain Fence
Fence 14 - Plain Fence
Fence 15 - The Chair
Fence 16 - Water Jump
Fence 17 - Plain Fence (1st fence)
Fence 18 - Plain Fence
Fence 19 - Open Ditch
Fence 20 - Plain Fence
Fence 21 - Plain Fence
Fence 22 - Beecher's Brook
Fence 23 - Foinavon (small fence)
Fence 24 - Canal Turn
Fence 25 - Valentine's
Fence 26 - Plain Fence
Fence 27 - Open Ditch
Fence 28 - Plain Fence
Fence 29 - Plain Fence
Fence 30 - Plain Fence

The most famous fences on the course are:

Becher's Brook
The 6th and 22nd fence in the Grand National, being jumped twice, Becher's Brook is 5 ft high from the take-off side but has a 7ft drop on the landing side and regarded as one of the most difficult fences.

Canal Turn
The 8th and 24th fence in the Grand National, the Canal Turn is immediately preceeding a 90 degree turn on the course.

Valentines
The 9th and 25th fence in the Grand National, being jumped twice, Valentine's is 5 ft high from the take-off side but falls 5ft 6in on the landing side.

The Chair
The 15th fence in the Grand National, the Chair is the biggest fence on the Grand National course at 5ft 2in high and the widest at 3ft wide. It has a 6ft ditch on the take-off side.

The Water Jump
The 16th fence in the Grand National, the Water Jump is 2ft 9in high with 9ft 6in width of water on the landing side. The only fence on the course to be less than 4ft 6in in height.