The mounted police's deployment onto the plains in 1874 became known as the "March West"....
On July 29, the main force then turned off the trail and headed across the much drier and rougher
prairies to the north-west.
[34] The police had no water bottles and soon both their food and water ran out; as the weather worsened, their horses began to die.
[35] When the force arrived at what they thought was Fort Whoop-Up at the junction of the Bow and South Saskatchewan rivers on September 10, there was nothing to be seen, as the fort was in fact around 75 miles (121 km) away.[36] The police had expected the area to contain good grazing for their horses but it was barren and treeless.
[37] French was forced to abandon the plan to head to Whoop-Up and instead travelled 70 miles (110 km) south towards the border, where supplies could be purchased from the United States.
[38] Yet more horses died from the cold and hunger, and many of the men were barefoot and in rags by the time they arrived, having travelled a total of nearly 900 miles (1,400 km).
[39]....
The expedition had been badly planned and executed,
and almost failed; the historian William Baker describes it as "a monumental fiasco of poor planning, ignorance, incompetence, and cruelty to men and beasts".[42] Nonetheless, it rapidly became portrayed by the force as epic story of bravery, endurance and determination.
[46]