The old Allegany High located on Sedgwick Street that served the area for 93 years was demolished May 2022.

[2] In the fall of 2018 the doors of the brand new Allegany High School located at 900 Seton Drive on the site of the former Sacred Heart Hospital on Haystack Mountain were opened.

The most widely accepted theory is that Civil War General Lew Wallace and his men began calling the site "Campobello" that during their time here.

In the 2005–2006 season, the team won the circuit and the regional championships, advancing to the Maryland state Mock Trial Final Four competition in April 2006.

They won the Atlantic Coast Championships in November 2021 with "Gravity", a clean sweep - Best Music, Best Percussion, Best Visual and Best Auxiliary - a sweet send-off to Jackson's retirement at the end of the school year.