Urban · UT, US
Timpanogos Cave National Monument
Many colorful cave features or speleothems are on display in the caves.
| Type | Urban |
| State / Province | UT |
| Country | United States |
| Nearest town | American Fork |
| Certified | 2020 |
| Coordinates | 40.4390, -111.7094 |
| Source | https://darksky.org/places/timpanogos-cave-national-monument-urban-night-sky-place/ |