The house was at the bottom of a valley near the reservoir, surrounded by rolling hills. There were green fields as far as the eye could see.
My method was to look ahead as far as the eye could see, work out the route mentally, then, leaving the wheelbarrow, test the ground in small sections and mark the way with my feet.
The road - little more than a track with deep ditches on either side - was elevated above the surrounding countryside. No other vehicle was in sight as far as the eye could see.