With the Métis uprising led by Louis Riel taking place at Batoche just 100 km northwest, Humboldt became the only communication link between Prime Minister John A. Macdonald and his forces in the West, thus a site of strategic significance. General Frederick Middleton arrived in April 1885 with 950 soldiers, established a garrison at the station, and used it as his base for scouting operations. At that time, the Humboldt station was crucial, since the telegraph line further west was periodically cut – so Humboldt was the last secure link to the East.