Yellowstone National Park’s best-known wolf, beloved by many tourists and valued by scientists who tracked its movements, was shot and killed on Thursday outside the park’s boundaries, Wyoming wildlife officials reported.

The wolf, known as 832F to researchers, was the alpha female of the park’s highly visible Lamar Canyon pack and had become so well known that some wildlife watchers referred to her as a “rock star.” The animal had been a tourist favorite for most of the past six years.

The wolf was fitted with a $4,000 collar with GPS tracking technology, which is being returned, said Daniel Stahler, a project director for Yellowstone’s wolf program. Based on data from the wolf’s collar, researchers knew that her pack rarely ventured outside the park, and then only for brief periods, Dr. Stahler said.