The nonprofit partner of Yellowstone National Park is introducing the Inheritance Pass as a way of commemorating the 150th anniversary of the park.

Yellowstone Forever CEO Lisa Diekmann said the pass functions in two ways.

"The Inheritance Pass is a way to support Yellowstone. Now, you receive a park pass for this year, and then you receive a beautiful Inheritance Pass folio to pass on to future generations," said Diekmann.

She said it is a keepsake that will be passed from one generation to the next until 150 years from now when the pass is valid, in 2172.

"It's a lot like a savings bond. So a beautiful certificate that you can have your name on or you can gift it to someone, to your friends, family, and their name will be on it," she said. "So the pass can say 'The Diekmann Family Inheritance Pass' and it passes through the generations."

Anyone who donates $1,500 or more to Yellowstone Forever will receive the Inheritance Pass. All of the money from the pass will be used for park priority projects in the future like wildlife protection and preserving resources. The passes are available till the end of 2022.