Spilling Thought: All day today, @grandcanyonnps is taking over our Instagram account, sharing stunning photos from the park during #summer. While #GrandCanyon National Park's expansive vistas leave visitors awestruck during the day, it's the amazing sunsets and starry skies that captures their attention at night. During July and August, spectacular sunsets like this one mark the end of the day. This picture was taken from #MatherPoint on the #SouthRim of the park as the last glowing rays of the setting sun illuminate the canyon. Photo by M.Quinn, #NationalPark Service. Be sure to follow @grandcanyonnps for more great photos from Grand Canyon. by usinterior