Grumes Grumes visto da Grauno Grumes (German: Grumeis) is a frazione of the comune of Altavalle in Trentino in the northern Italian region Trentino-Alto Adige/Südtirol, located about 20 kilometres (12 mi) northeast of Trento. This Trentino-Alto Adige/Südtirol location article is a stub. You can help Wikipedia by expanding it.vte