Commercial enterprises operate two additional air facilities.
Helicopter pads are available at 27 stations. Of these, one is longer than 3 km, six are between 2 km and 3 km, three are between 1 km and 2 km, three are less than 1 km, and two are of unknown length. Of these, four are greater than 3 km in length, three are between 2 km and 3 km, two are between 1 km and 2 km, two are less than 1 km in length, and four are of unknown length. Airports are generally subject to severe restrictions and limitations resulting from extreme seasonal and geographic conditions. All rights reserved.