The Ridgeway is a ridgeway or ancient trackway described as Britain's oldest road. The Corlea trackway dates from approx 148 BC and was excavated in 1994. There is an Oakley in Merstham close to 'Old Way' prehistoric trackway. The fossil trackway can be viewed during very low tide. Green Lane was the oldest trackway through the village. A section of the trackway has been reconstructed. In 2007, scientists described the first known extensive dromaeosaurid trackway, in Shandong, China. The purpose of the Corlea Trackway is uncertain. The 12th-century Brenner Pass was a trackway for mule trains and carts. Neither Xenocrates nor Ptolemy offers any details on his trackway. The original trackway was remolded and new casts were made. Those features are useful when attempting to explain trackway patterns of graviportal animals. The Corlea Trackway Visitor Centre is located near to Longford, in Keenagh. However, the part of the trackway unaffected by root growth showed exceptional preservation. It is the largest trackway of its kind to be uncovered in Europe.