Today, we lost a K9 hero. Bretagne (pronounced “Brittany”), the last living 9/11 search and rescue dog, passed away at the age of 16.

Bretagne, who lived in Texas with her handler, Denise Corliss, was experienced in rescue missions. Not only did she work 12-hour days searching the rubble for almost two weeks at Ground Zero, but Bretagne was also deployed for search and rescue missions following Hurricane Katrina, Hurricane Rita, and Hurricane Ivan, according to

Bretagne. Source:

Bretagne. Source: Houston Humane Society

Though Bretagne retired from search and rescue at the age of 9, she kept busy with other forms of service — even in retirement.

She volunteered to help first-grade students as a “reading assistance dog” at a local elementary school in Texas, and was even the subject of a recent book focused on the incredible feats of senior dogs.

Related: 17 Photos That Show The Bravery Of Military Working Dogs

Bretagne was part of Texas Task Force 1, an urban search and rescue group. Members of Texas Task Force 1 and the Cy-Fair Volunteer Fire Department gave her a formal salute as she made her final walk into the veterinarian’s office on June 6th.