A young woman collapsed, reported as diabetic and pregnant. Her partner called us for help, but didn't really know where they where. We were given three different locations, 2km apart. We eventually located them just as it was going dark. The woman was very cold, and unable to move; the man cold, but still able to walk. The woman was treated for her hypothermia and evacuated to the valley on our stretcher. The man was given additional clothing and escorted down as well.