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Photo Gallery: Overview

Aspen

Banff

Boulder

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A black bear cub awakens from a nap in a tree outside a fraternity house in Boulder, Colorado's University Hill neighborhood on September 25, 2014.

Fruit-bearing trees are a natural attractant for browsing bears during their hyperphagia period. North Boulder was once an apple orchard and many of its trees remain to this day.

Volunteers with Community Fruit Rescue, a local non-profit, pick apples from overburdened trees in Boulder. One-third of apples are sent to the Wild Animal Sanctuary in Keenesburg, Colo. where they feed captive bears.

A truck barrels down Highway 70, near the small town of Silt, Colorado, in the western part of the state.

An orphaned bear cub chews on the bars of his cage at the Pauline S. Schneegas Wildlife Foundation, a refuge for injured and abandoned wildlife. This bear was one of 17 at the foundation in mid-October 2014. The cubs come from a variety of backgrounds. Some are orphaned by cars and hunters, others belonged to nuisance bears that had to be euthanized by Colorado Parks and Wildlife. And some are simply malnourished, abandoned by their mothers in hard food years.

Aspen wildlife enforcement officer Dan Glidden gathers photo evidence of an unsecured garbage can that has been torn apart by a black bear.

Even certified Bearracuda bear-resistant cans, like the one pictured, can't stand up to a determined bear. Metal cans are often the only way to keep bears out.

Margaret Isenhart pushes her goats into her goathouse in Boulder, Colo. on a late October evening. A rogue bear attacked and killed two of her goats, Tweedle-Dee and Frosty, that fall, while a third, She-Devil, seemingly died of fright.

Lake Minnewanka in Banff National Park is a grizzly bear hot spot come summertime when one of their favorite foods, buffaloberries, are in season. As of July 10, Parks Canada restricts mountain bikers from using the surrounding trails and requires a minimum of four hikers in a group.

In Banff National Park, few bears die from garbage. Instead, most meet their end on the tracks of the Canadian Pacific Railway, or on the pavement of the Trans-Canada Highway, which runs through the park.

Steve Michel, a human-wildlife conflict specialist with Parks Canada, listens for the dull pinging of Bear 148's radio collar on an old fire road leading up Sulphur Mountain in Banff National Park.

At the Banff townsite, curbside garbage and recycling collection has been eliminated. Instead, residents, like those in Middle Springs subdivision, use communal bear-proof bins for all waste—including organic compost.

In 1996, Parks Canada began to construct wildlife overpasses in Banff National Park. Today, there are six overpasses and 38 underpasses between the east boundary of Banff National Park and the west boundary of the British Columbia border. The corridors are widely considered a conservation success story, as grizzly bears and black bears alike have adapted to using the man-made structures.

A mother bear is kept at bay by Boulder's "bearsitters" as her two young cubs snooze under the hot sun. Bearsitters use pots and pans to keep families in trees during the day so they can leave safely at night without disturbing Boulder's human population.