86th TOMB TREK 2021 ARLINGTON NATIONAL CEMETERY This year the Trek to the Argonne Cross and Tomb of the Unknowns will be held on 5 - 7 November 2021. HOTEL INFORMATION: Sheraton Hotel, 900 Orme St, Arlington, Virginia, 22204; room rates $109.00 plus tax. Parking is $ 10.00 per day. You may reserve your room...