The Great Eastern Pingo Trail is 8 miles (12.9km) of tracks and trails exploring the eastern edge of the Brecks. It follows part of the old railway line and another FKT Peddars Way as well as the stunning Thompson Common Nature Reserve.
Pingos were originally low hillocks that formed 20,000 years ago during the last ice age when water beneath the surface froze to form lenses of ice pushing soil upwards. During the summer thaw, the soil on the surface would sludge off and accumulate around the periphery of the hillocks. Shallow craters were left when the ice finally melted, causing the hillocks to collapse.
https://ldwa.org.uk/ldp/members/show_path.php?path_name=Great+Eastern+Pingo+Trail
