We’re just going to assume there’s some downtime between keeping parks clean and educating America’s youth about who can prevent forest fires. How else could you explain this U.S. Forest Service 1974 Cocktail Construction Chart? With the detail-rich appeal of a housing blueprint, the chart maps out how to craft the perfect martini, whiskey sour, or other drink. Seeing as how a great drink is truly timeless, the chart holds just as much weight today as it did 40 years ago. Because when the U.S. Forest Service parties, they party with incredibly detailed precision.