Most of the remaining population of Welsh’s Milkweed is in a park named for these geographical features with a distinct “Coral Pink” color. The (15[1])largest area (15[1])in the Arctic with these features is in the south of Alaska’s Kobuk Valley National Park. The intermittent Medano Creek maintains the size of these formations in a national park in the San Luis (15[1])Valley of the Sangre de Cristo Mountains. (15[1])The Kelso (15[1])region is one area where these (-5[1])features are known to (*) “sing.” (10[1]-5[1])The largest (10[2])of these (10[1]-5[1])formations made of (10[1])gypsum (-5[1])are found at a national park (10[1]-5[1])designated (10[1])in 2019 (-5[1])that (10[1])periodically (10[1])closes for missile testing. (10[1])Crescent-shaped (10[1])barchan ones of these (10[1])formations contrast (10[1])with a 750-foot-tall star-shaped one in a national park named for them in Colorado. (-5[1])For 10 points, Indiana’s only (10[1])national park, on its northern lakeshore, is named what wind-shaped sand formations? (10[2])■END■ (10[5])