Part of the River Tees in beautiful Upper Teesdale. Low Force tumbles over the Whin Sill, a layer of hard dolerite rock (known locally as whinstone). The Whin Sill formed 295 million years ago from molten rock, which cooled and solidified underground.
Today, after millions of years of erosion it is exposed as rocky landscape features at Low Force, High Force and other places in Upper Teesdale.
The Pennine Way footpath route runs alongside the River at Low Force. Low Force is also easily accessible from Bowlees Visitor Centre.