Old Town Guide What Is Meant By The Word "march" When Used In The Context Of Distance?

What is meant by the word "march" when used in the context of distance? - old town guide

I'm doing a research archive, look at guidebooks former British India for 100 years. They often refer to distances between cities in terms of "steps. For example, say" City B is three steps down the valley town of A ". What does that mean exactly? Does it refer to a certain period of time it took to travel (for example, is a "go" the distance you can travel in one day?) Or refers in particular to a whole unit of distance? Thanks