the.com/valley
where rivers carve and civilizations cluster, proving the lowest ground often holds the most life
river-carvedMost valleys are slowly cut by flowing water
first citiesCivilization began in river valleys like Mesopotamia
deepest oneYarlung Tsangpo Canyon plunges over 5,000 meters
silicon namesakeTech's capital borrows the word for branding
valley feverA real fungal lung disease named after them