In 1949 the islands were acquired under joint ownership: the canton of Ticino, the municipalities of Brissago, Ascona and Ronco sopra Ascona, the Swiss Heritage Society and the Swiss Federation for Nature Conservation.
Pino sulla Sponda del Lago Maggiore borders the following municipalities: Brissago (Switzerland), Caviano (Switzerland), Gerra (Gambarogno) (Switzerland), Maccagno, Ronco sopra Ascona (Switzerland), San Nazzaro (Switzerland), Sant'Abbondio (Switzerland), Tronzano Lago Maggiore, Veddasca.
Ascona | Ronco Briantino | Santa Maria sopra Minerva | Ronco | Opel Ascona | Forni di Sopra | Tiarno di Sopra | Ronco sopra Ascona | Bonate Sopra | Boffalora sopra Ticino | Brembate di Sopra |