Lines will appear on the map to the right.
Use the +/- icons to get more/less detail.
If you click on a line, details about the path will appear.
These details use a name like 100/5 to identify a path. This name is used on the Definitive Map of Oxfordshire. The 100 identifies a particular parish (e.g., 100 is Abingdon) and the 5 is the path number within that parish.
The underlying map is an OpenStreetMap map. It has been generated by oxonpaths, a project to run/walk all the paths of Oxfordshire. The oxonpaths home page is at www.oxonpaths.com.