Būdakalniss (or Ažušilė Hill, Ažušilis) is one of the highest hills in Lithuania (284.8 m), located 3 km east from Ignalina, in Švenčionys highlands. It was formed during the last ice age from moraine loam, pebbles and rubble. The village of Ažušilė is located at the northern side of the hill.
Apžvalgos bokštelis labai pavojingo stovio. Jį reikėtų sutvarkyti.