Bears Of McNeil River

Jerry Bowen was among the very few visitors allowed this year at the McNeil River State Sanctuary, home to the largest congregation of brown bears in the world.

Located on the southwest shore of Alaska, the McNeil River draws bears to its bountiful runs of salmon.

Bears eat as much as possible during the summer months to build up fat reserves for the long winter hibernation.

When food is plentiful the bears fish in close proximity.

But brawls over territory are not uncommon. The scars on this bear's back were most likely caused by a fight with another bear.

Bears must also contend with others who might steal their catch. This bear heads off to find a safe place to enjoy a meal.

An apparently fearless Jerry Bowen gets close to his subjects. The state's wildlife conservation Web site says no one has ever been injured by a bear at McNeil River.

Bears eat the fat-rich skin, eyes and roe first and often leave most of the carcass for scavengers.

Two bears take a break from fishing to enjoy a little playtime.

Another bear catches a nap before getting back to fishing.

A female bear keeps her three young cubs close.

Two curious cubs check out the CBS News cameraman.

Bears aren't the only animals that rely on the McNeil salmon runs. This bald eagle perches above the river looking for a meal.

Accommodations at the McNeil River State Sanctuary are Spartan to say the least.

The crew gets a birds-eye view of the smoldering cone of Mount Saint Augustine near the sanctuary, one of 40 active volcanoes in Alaska.