Being Caribou is a 2005 documentary film that chronicles the travels of husband and wife Karsten Heuer and Leanne Allison following the migration of the Porcupine caribou herd, in order to explore the Arctic Refuge drilling controversy.
The journey lasted 5 months, starting from the community of Old Crow, Yukon on April 8, 2003 and ending on September 8, 2003.
Karsten Heuer documented this trek with Leanne Allison, which was also their honeymoon, in his book Being Caribou: Five Months on Foot with an Arctic Herd.
Allison, an environmentalist, and Heuer, a wildlife biologist, follow a herd of 120,000 caribou on foot, across 1,500 kilometres (900 Miles) of Arctic tundra, in order to raise awareness of threats to the caribou's survival.
[1] At stake is the herd's delicate habitat, which is threatened by proposed petroleum and natural gas development in the herd's calving grounds in Alaska's Arctic National Wildlife Refuge.