Google Maps - Google Earth Distance: 11.5 km Maximum altitude: 1,234 m Minimum altitude: 1,141 m Total elevation gain: 196 m IGN Maps: 2737SB - LANGOGNE GRANDRIEU. Pradelles Map and plan Slideshow and video History of the town With Robert Louis Stevenson in Pradelles Pradelles, stage of the GR®70 Stevenson Trail GR®70 From Pradelles to La Bastide-Puylaurent 6.8 km hike 8 km hike 11.5 km hike 13 km hike GR®70 Stevenson Trail GR®470 Allier Springs Trail GR®700 Régordane Way Around L'Étoile