Input (grade 13): Devon Island is also notable for the presence of the Haughton impact crater, created some 39 million years ago when a meteorite about 2 k in diameter crashed into what were then forests.
Output (grade 7): Devon Island is also notable for having the Haughton impact crater, made some 39 million years ago when a meteorite about 2 km (1.2 mi) in diameter crashed into what were then forests.