Find Your Location Using Resection. Resection is the method of locating one's position on a map by determining the grid azimuth to at least two well-defined locations that can be pinpointed on the map. For greater accuracy, the desired method of resection would be to use three or more well-defined locations. When using the map and compass method--.
MYTH: All thatch is bad. FACT: most lawns have a layer of thatch, even healthy lawns. However, when that layer builds up to more than 1/2, it needs to be reduced. MYTH: Thatch is caused by lawn clippings. FACT: Grass clippings are made up mostly of water and nutrients (approximately 90%). Remove only 1/3 of the grass at one time and leave the clippings.
Bare spots on your lawn can be caused by a variety of factors, like over-fertilizing or lack of water. Maybe you spilled some weed killer on it the last time you were treating those dandelions or filled up your mower. Whatever the cause was, the cure is to re-seed it and get grass growing again.