The 100th Meridian by Larry Shultz | Feb 19, 2023 | Physical Geography, US WestThe 100th Meridian, Where the Great Plains Begin, May Be Shifting (columbia.edu)
Global Cloud Cover by Month, Both Day and Night by Larry Shultz | Feb 19, 2023 | Dark Night Skies, Physical Geography, US WestGlobal Cloud | Eclipsophile