In 1858, when Palliser's expedition was exploring a mountain pass near the continental divide of the Canadian Rockies, one of Hector's packhorses fell into the river. As it was being pulled from the water, his own horse strayed and, when chasing after it, Hector records, he was kicked in the chest and knocked unconscious. He wrote in his diary of the expedition: In attempting to recatch my own horse, which had strayed off while we were engaged with the one in the water, he kicked me in the chest. His companions, thinking him dead, dug a grave for him and prepared to put him in. His premature burial was cancelled when he regained consciousness. The pass and nearby river have been known since as Kicking Horse Pass and Kicking Horse River.