Once I entered the woods I had only dead reckoning to come out near my quarry.
Amazing navigation " Do you mean to say you did it all on mere dead reckoning?
On 14 December, by ' dead reckoning ', they were at the South Pole.
A new second lieutenant must have mastered map reading and land navigation skills, and have an aptitude for dead reckoning and terrain association.
Obviously brilliant dead reckoning navigation helped considerably by the coming of dawn !