This Lake is located among the Trentino-Alto Adige/Südtirol, Veneto and Lombardia regions. It is a very popular area for mountain biking, especially for Germans, which have targeted it for a long time as a holiday resorts. The guidebooks are nicely done. Each page is protected with a plastic sheet, and can be removed, folded and stored in your jersey back pocket. Nice idea! There are Italian and German versions.