Sources

Where the facts come from

• nps.gov — 259 pages
• gatewayarch.com — 1 page
• recreation.gov — 1 page

Non-government hosts appear only where the National Park Service links to an operator as the sole official booking channel for a park, and each such host is allowlisted individually in the codebase with the reason recorded.

Image rights

Only National Park Service staff photographs (public domain as works of the U.S. government) are used. Credit lines are recorded verbatim from the official page where the image was found. Images whose credit names a non-NPS photographer are rejected.

• mount-rainier — “NPS Photo”, source page. Public domain (work of the U.S. National Park Service).
• yosemite — “NPS / Cindy Jacoby”, source page. Public domain (work of the U.S. National Park Service).
• zion — “NPS/Shane Carte”, source page. Public domain (work of the U.S. National Park Service).
• rocky-mountain — “NPS Photo”, source page. Public domain (work of the U.S. National Park Service).
• grand-canyon — “NPS/M. Quinn”, source page. Public domain (work of the U.S. National Park Service).
• arches — “NPS Photo”, source page. Public domain (work of the U.S. National Park Service).
• yellowstone — “NPS/Jim Peaco”, source page. Public domain (work of the U.S. National Park Service).