Of the remainder, four have runways 1, 524 to 2, 437 m length, and a further four of lengths between 914 and 1, 523 m. Of the airports without paved runways, 1 has runways of length above 1, 524m, 17 have runway lengths between 914 and 1, 523 m, leaving 25 with length below 914m.

There is one airport with an unpaved runway, under 914m ( 2005 est.

The scheme involved the construction of a gravity dam over 914m long ( the longest in the Highlands ) and 27m high, creating the Blackwater Reservoir.

The surrounding mountains are picturesque but relatively rarely climbed as none quite reaches the 3, 000ft ( 914m ) required for Munro status.