Thanks
to Graziano Vinti e Gino Martinelli for the texts made available.
Commissioner Mauro Severini the Comunità Montana Alto Tevere of Umbria and the Surveyor Bruno Ruggeri Regional Forestry Agency of Umbria for having made available the maps of hiking trails.
Alessandro Suriani for providing traces of bike trails.
Below are the guide from which the information on the site have been drawn.
