Noun
a river that rises in northern Colombia and flows generally eastward to the Orinoco in central Venezuela
Source: WordNetThe mission of Santa Rosa de Arima was established in 1789 when Amerindians from the former encomiendas of Tacarigua and Arauca ( Arouca ) were relocated further east (They settled in Santa Rosa close to the town of Arima). Source: Internet
We can see and attest to the terror felt by the people of Arauca. Source: Internet