Summer fog holds over the small glacial lakes here until the sun clears the ridge, and that is when the first mower rolls out. Galan Tree Service takes care of lawns in Rainbow Lakes, where the yards tip downhill toward water and every cutting line has to bend with the ground. The work is patient: mowing, edging along the walks, string trimming where hemlock and laurel crowd the lot line, and clearing out whatever spring and fall drop. By mid-morning the mist is off the water, the grass is dry and striped, and the place looks tended from the road. In this pocket of the Morris County highlands, that is reason enough to be up early.