As they approached the Little Bighorn River, Benteen was met by a messenger from Custer, soon followed by another, both saying that a big village had been found and that Benteen should immediately come up. A note delivered to him read: "Come on. Big village. Be quick. Bring packs." The slow pack mules, carrying reserve ammunition and guarded by B Troop, had reached the marsh and were slaking their thirst. After first waiting for the pack train, Benteen decided to move on without them.