We love to see any part of the earth tinged with blue.

"A fine, freshening air, a little hazy,  bathes and washes everything . . . Walked to the hills . . . First vista
. . . looking west down a valley, with . . . the blue hills and the horizon beyond . . . We love to see any part of the earth tinged with blue, cerulean, the color of the sky, the celestial color . . . [a] vista where you have the near green horizon contrasted with the blue one, terrestrial with celestial earth.  The prospect of a vast horizon must be accessible in our neighborhood.. . . , [w]here people of enlarged views may be educated."

Henry David Thoreau

Photo: Smoke from the Fern Lake Fire in Rocky Mountain National Park makes our foothills look like the Blue Ridge Mountains of North Carolina; Bingham Hill, near Bellvue, October 23, 2012.