Before the streets and the greenbelts, this was cattle ground, and you can still read it from the overlook at Daniels Park, where the bison graze and the plains slide east into haze. Cowboy Lawn and Sprinkler LLC works that same land in its newer surface, mowing, edging, string trimming and running the cleanups that carry a Highlands Ranch yard from thaw to freeze. The approach is straightforward: show up, do the whole job, leave the place better than the hour before. Grass cut on a schedule holds its color longer and fights weeds better than grass cut whenever somebody remembers. There is a plain satisfaction in a lawn that looks like the same hands have had it all year.