Template:FP-High Force

High Force, on the border of County Durham with Yorkshire

High Force High Force is a waterfall on the River Tees, near Middleton-in-Teesdale. The river here, and therefore the waterfall, is the border between the two counties of Durham and York. This is one of the greatest waterfalls in Britain; is not the highest but its breadth and volume of water are impressive: here the whole of the River Tees plunges over a rock precipice at the Whin Sill, a hard layer of igneous rock The wearing away of rock means that the waterfall is slowly moving upstream, leaving a narrow, deep gorge in front of it. The length of the gorge is currently about 700 yards. Upstream of the waterfall, the river is narrow; downstream, it widens and meanders. (Read more)