Topographical areas of Yorkshire

The North York Moors in the north-east of the county are Jurassic in age while the Yorkshire Wolds to the south east are Cretaceous chalk uplands.

The River Nidd rises on the edge of the Yorkshire Dales National Park and flows along Nidderdale before reaching the Vale of York.

The western Pennines are served by the River Ribble, which drains westwards into the Irish Sea close to Lytham St Annes.The largest freshwater lake in the region is Hornsea Mere in the East Riding of Yorkshire.

The smaller River Esk flows from west to east at the northern foot of the North York Moors to reach the sea at Whitby.

These are: Figures in brackets refer to the equivalent Joint Character Areas outlined in the next section and illustrated on the map.

A simplified geology of Yorkshire
The main rivers of Yorkshire
The Humber Bridge was designed based on ideas by Sir Ralph Freeman before the 1950s, then Sir Gilbert Roberts in 1955 and 1964, and a final complete design by Bernard Wex . It was made with a significant amount of ground granulated blast-furnace slag .
The natural sub-regions of Yorkshire
Location of Yorkshire Joint Character Areas [ 3 ]
1. Vale of Mowbray
2. Vale of Pickering
3. Howardian Hills
4. Yorkshire Wolds
5. Holderness
6. Humber Estuary
7. Humberhead Levels
8. Vale of York
9. Southern Magnesian Limestone
10. Nottinghamshire, Derbyshire and Yorkshire Coalfield
11. Yorkshire Southern Pennine Fringe
12. Southern Pennines
13. North York Moors and Cleveland Hills
14. Cleveland / Tees Lowlands
15. Pennine Dales Fringe
16. Yorkshire Dales
17. North Pennines
18. Bowland Fells