I have always considered the imagery of US national parks as something that gave a strong personality to each of those nature reserves. Each park has its own identity, rooted in decades, if not centuries, of history.
In Italy we have 25 national parks, one of which is now inactive, and we aim to establish new ones in the coming years. Some of these already have an identity, others even do not. This is why I enjoyed designing a logo/badge for each of them: no rules, no istitutional font, no color palette, no unique style. Just for fun.

Enjoy it!