Coquitlam Search and Rescue volunteers were called out for the rescue in the Bunzten Lake Recreation Area, after a 19-year-old man and woman called for help.
"They tried to make it through the night and they found it was too cold, so they called for us to come and get them," said Coquitlam Search and Rescue Manager Michael Coyle.
Coyle said the two hikers weren't planning on spending the night, but their outing took longer than expected.
"It's still winter up high and there's snow on the trails too, which is probably why they didn't have enough time to make it out of there, they were probably slowed down by the snow," said Coyle.
Coyle said the hikers were reasonably well prepared for the conditions, but could have packed more.
"A flashlight would have made the difference tonight. They would have been able to keep moving in the dark and make it out under their own steam," said Coyle.
"They made the right decision to stop moving when it was dark, because a lot of people keep going and they hurt themselves, a sprained ankle, then we have to carry them out."
Rescue volunteers expected the call to be over in just a few hours, but the two hikers were very slow moving down the trail, due to the cold, and one of their shoes falling apart.
At about 5:30 a.m., PT, they were loaded into an eight-wheel-drive vehicle and driven out on bumpy logging roads.
Coquitlam Search and Rescue was called out earlier on Wednesday for a similar rescue, when a couple who had planned on spending the night on the north side of Eagle Mountain decided conditions weren't favourable, and were flown out in a helicopter.