Celebrate Arches’ designation as an International Dark Sky Park Saturday, Sept. 21.

Photo courtesy of Miguel Hinostroza

Arches National Park will celebrate its designation as an International Dark Sky Park on Saturday evening, Sept. 21. Rangers from around the Colorado Plateau will be on hand to “share the wonders of the night sky.” Constellation tours and telescope viewing will also be available.

For more details, visit the Arches’ Window to the Universe webpage.

In the meantime, enjoy this cool video:

Source: Canyonlands Natural History Association