Ch'alla Willk'i ( Aymara ch'alla sand, willk'i gap, "sand gap", also spelled Challa Willkhi, Challahuillque, Challahuillqui) may refer to:
Ch'alla Willk'i ( Aymara ch'alla sand, willk'i gap, "sand gap", also spelled Challa Willkhi, Challahuillque, Challahuillqui) may refer to: