Presumably, Kolsass was named after the Rettenberg Castle hill, which has already been settled in the Iron Age.
Altitude: 553 m a.s.l.
Kolsass is a little holiday village between Innsbruck and the Zillertal valley. Already in 1050 AD, it was mentioned as "Cholsasz", referring to the Rhaeto-Romanic words "col" (hill) and "sass" (rock). Probably these terms refer to the hill, which has already been settled in the Iron Age and on which Rettenberg Castle was built in the 14th century. Knight Florian Waldauf died here in 1510.
Today however, the castle is reduced to a ruin. It rises along the road from Kolsass to Kolsassberg, where you can still see its four corner towers, the great hall and the castle walls. Other parts were used in the 18th century for the reconstruction of the church of Wattens. Kolsass itself remained a mainly rural village up to the 20th century. Closely connected with the neighbouring village of Weer, in both of the localities there is a common school, so to speak a common primary school in Kolsass and a common secondary school in Weer.
If you are interested in culture, then we recommend a visit of the Visitation of Mary Parish Church, which was founded in pre-Carolingian times. In Kolsass you can also be active: The Inn Cycle Route - Tiroler Unterland runs almost flat to Innsbruck, 20 km away, and in winter there are two ski lifts in the neighbouring Kolsassberg and several cross-country ski tracks in the surroundings.