For example, criminal liability in federal parks is determined in part by reference to state law. (law.stackexchange.com)
According to Ted Flinkinger, executive director of the Illinois Association of Park Districts, the Elk Grove Park District's move into Itasca is legal based on federal Park District laws. (articles.chicagotribune.com)
Staten Island Rep. Dan Donovan wants an iconic statue of Christopher Columbus relocated to federal park land in his borough if NYC takes it down in Manhattan in a frenzy of political correctness. (nystateofpolitics.com)