National Park Week begins Apr 18, 2020

National Park Week begins

To kick off National Park Week, which starts today, we"re turning our lens on Vernal Fall in California"s Yosemite National Park. This time of year, the waterfall flows in a torrent, but by late summer it can be reduced to a trickle of small streams slipping over the edge. Most years, Vernal Fall is at full power by May, as the spring thaw in the mountains melts the snowpack, turning the falls into a raging tumble of water spilling to the valley floor where the Merced River flows.

© elvistudio/Shutterstock

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Today in History

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Apr 18, 2025International Day for Monuments and Sites

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May 25, 2023Saksun, Faroe Islands, Denmark
Sep 2, 2022Seitan Limania Beach, Crete
Sep 20, 2018May we have this dance?
Sep 9, 2024Iguazu Falls at the border of Argentina and Brazil
Aug 5, 2021A swim in the sky
Jul 30, 2021Working for that cliffside view
Apr 24, 2023Old underground cellar, Bavaria, Germany
Apr 9, 2026Sgwd yr Eira waterfall, Bannau Brycheiniog National Park, Wales
Jan 16, 2025Anniversary of Pinnacles National Park, California
Oct 10, 2024Kochia, Hitachi, Ibaraki prefecture, Japan
Apr 22, 2021Gazing down on planet Earth
Mar 21, 2018Celebrating the International Day of Forests
May 1, 2024Lei Day
Nov 2, 2024National Bison Day
Mar 6, 2020Hello, harbinger of spring
May 9, 2023A castle fit for a count
Dec 6, 2025Celebrating 78 years of Everglades National Park
Apr 25, 2020Rockin with the rockhoppers
Dec 30, 2022White Desert National Park, Egypt
Jul 27, 2023Arc de Triomphe du Carrousel and the Louvre Pyramid
Feb 4, 2023Rosa Parks Day
Dec 12, 2022Poinsettia Day
Mar 17, 2020It s a good day to be green
May 7, 2025Dunluce Castle, County Antrim, Northern Ireland
Sep 18, 2018A red knot on the Shetland Islands, Scotland
Jul 1, 2024Canada Day
May 6, 2025An ultralight aircraft flying over the sands of Namibia
Nov 28, 2025Celebrating Native American Heritage Day
Mar 8, 2026Daylight Saving Time
Aug 10, 2022Joshua Tree National Park