At the outlet of the Tanaser Brook, north of Lasa/Laas, the small village of Oris/Eyrs is situated with its approximately 800 inhabitants. At the end of the 13th century, the Tanaser Brook caused a stone mudslide that completely destroyed the prior Oberdorf. After that disaster, Oris was deliberately re-built in the valley.

Near the present village center are the wetlands called Eyrser Auen, a protected biotope landscape containing rare plants and animal species which beckons to be discovered by visitors. Another worthwhile destination for hikers and Nordic walkers are the irrigation channel paths in the vicinity, which allow for an unobstructed view of the wide Venosta Valley and imposing mountains. An excursion to the nearby traditional village of Cengles/Tschengls with its trails and the Tschenglsburg Castle is definitely worth a visit.