ガンパウダーフォールズ州立公園ヘレフォードエリア-バンカーヒルトレイル（青）

Hereford High School is a four-year public high school located in the rural northern Baltimore County town of Parkton, Maryland, United States, as part of the Baltimore County Public Schools (BCoPS). The secondary school was established in 1953.The school's district is the Hereford Zone. The Hereford Zone covers 233 square miles (600 km2) and makes up over a third of Baltimore County by area.