National Park ServiceJul 13, 2022National park tourism in Maryland creates $344.3 million in economic benefitA new National Park Service (NPS) report shows that 6,675,119 visitors to national parks in Maryland spent $246.6 million in the state in 2021. That spending resulted in 2,940 jobs and had a cumulative benefit to the state economy of $344.3 million.Official NPS source