Greer County summer is a straight, honest heat: the Salt Fork of the Red River running thin, the gypsum hills west of Mangum glaring white, the wind carrying dust and the smell of cut hay. 90 Degree Lawn Care answers it with square corners, mowing, edging along walks and drives, trimming tight to fences and foundations, and clearing the concrete so nothing tracks indoors. Yards out here earn every inch of green they hold, and it shows in how carefully people look after them. The granite country east of town turns rose at sundown, and that is often the hour the last mower shuts off. A crisp edge in Mangum is not decoration; it is a small, exact line drawn against a very big landscape.