Yamashkin Stanislav Anatolievich RussiaSaranskNational Research Mordovia State University, 68 Bolshevistskaya St., Saransk 430005, Russiayamashkinsa@mail.ru Author's articles Geoportals as a tool for access to cloud storage of metageosystems data Principles and methods for studying the structure of metageosystems for designing a pilgrimage-tourist cluster