1.   A flat crater in the side of the ridge appeared as if it had been caused by a meteor.

2.   A flat crater in the side of the ridge appeared as if it had been struck by a meteor.

3.   In a helicopter flight near the crash site, a flat crater in the side of the mountain looked as if it had been carved out by a meteor.

4.   In a flight near the crash site, a flat crater in the side of the mountain appeared as if it had been carved out by a meteor.