2019 July 22
This paper describes four high altitude sites in southern Peru that were visited, in March 2019, by members of the SGSO Alliance (currently the SWGO Collaboration). The sites are located above 4000 m.a.s.l. with access to water resources and are located between 1 to 4 hours drive from the closest airport. Peruvian authorities, local populations and universities offer support and encourage international collaborations to consider these sites for Astroparticle Observatories.