In 2008, national park visitors spent $11.56 billion in gateway communities, supporting 205,000 jobs, while the National Park Service employed 24,954 people with a payroll of $1.517 billion. The economic impact in California alone included 34 million visits and 18,808 jobs from non-local visitor spending. The document also highlights challenges posed by illegal drug trafficking on public lands, leading to environmental damage and risks to park visitors.