Inari (, , , , ) is Finland's largest, most sparsely populated municipality, with four official languages, more than any other in the country. Its major sources of income are the lumber (timber) industry, nature maintenance and tourism. With the Siida museum in the village of Inari, it is a center of Sami culture. The airport in Ivalo and the country's key north-south European Route E75 (Finland's National Road 4) bring summer and winter vacationers seeking resorts with access to a well-preserved, uncrowded natural environment.