The most in a day which was 18 hours in the city was 82. Just now on our way home from the ET HWY in one 16 hour period was 671, it was a hard and long experience the next day we did 5 hours to finish up the power trail we did another 350. For those people bashing power trails give it a try first it is so much harder than you think. We slept in our car in 20 degree weather out in the desert this was in December the 27th-28th only one hot meal and the rest snacks we grabbed at wal-mart....it was an amazing experience and the reward was not only numbers but the satifacation of know you accomplished this amazing task and it was just me and my husband. "don't knock it until you have the guts to try it"