Durham is a predominantly hilly country, including a large area of the [[Pennines]] containing Weardale and northern Teesdale. The rivers [[River Wear|Wear]] and [[River Tees|Tees]] marks its southern border. The largest [[waterfall]] in England, High Force is on the latter, straddling the border between County Durham and Yorkshire. | Durham is a predominantly hilly country, including a large area of the [[Pennines]] containing Weardale and northern Teesdale. The rivers [[River Wear|Wear]] and [[River Tees|Tees]] marks its southern border. The largest [[waterfall]] in England, High Force is on the latter, straddling the border between County Durham and Yorkshire. |