The Yellowstone Bourbon brand is philanthropic, and by purchasing a bottle, you’re indirectly helping out the national parks:

“Yellowstone Kentucky straight bourbon borrows its moniker from America’s very first national park. In 1872, Yellowstone bourbon was crafted to honor the park’s sprawling historic wonder and pioneering spirit. Here’s hoping you enjoy drinking our national treasure as much we enjoyed distilling it.

To further do our part, we are donating a portion of Yellowstone bourbon proceeds to the National Parks Conservation Association (NPCA), an independent, nonpartisan organization devoted to nurturing our country’s national parks for future generations.” – Limestone Branch