Originally Posted by rickair7777

It's in 61.1

Cross-country Time: Must land at another airport and use navigation. No distance requirement.

Additionally...

For Aeronuatical Experience for PPL, COMM, IRA: Must also include one landing at an airport greater than 50nm (straight line) from the original departure point.

For an ATP: 50 NM distance is required, but NO landing.

For Military Pilots (who already hold an FAA COMM): Same as ATP.

USMC...unless there's something in your military flight logs which would contradict a claim of >50NM, I would just use your judgement and go back and estimate which sorties qualified.