Yshyr Forest
West of the upper Paraguay River, the northern Chaco spreads into woodland and scrub. This forest country belongs to the wider homeland of the Yshyr, a Zamucoan-speaking people also known as Chamacoco. The Tomáraho traditionally lived in the forest, while the related Ybytoso lived closer to the river. Hunting and gathering drew on the resources of the Chaco, where the seasons brought marked changes in the availability of water.