Significados de ancient ditch en inglés

Bluff over ancient ditch, showing gravel stratum

A modern flume, which follows closely the line of an ancient ditch, brings down the necessary water from Waihee Creek.

Ancient ditch and horticultural works on Clear creek

Ancient ditch around a knoll, Clear creek

Unfortunately there is nothing either in your grant or in your neighbors' that specifies unmistakably which of these ancient ditches is the one referred to.