The weather has been too bad to allow a helicopter to retrieve the body, which is reportedly high on the 5,951-metre mountain.
Details are sketchy because the victims' climbing partners appear to have left the scene.
They were apparently climbing without a permit, says Ray Breneman, a warden at Kluane National Park. They had not flown to the mountain through regular channels, checking in with Parks and paying the nominal climbing and landing fees. Only one pilot from Haines Junction flies into the remote and dangerous area, said Breneman. But he did not take the group. People who want to avoid paying Parks fees often fly into the area from the United States, he added.