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.
Dethatching. For thatch layers that are between 1/2 inch and 1 inch, you can simply use a garden rake to remove some of the thatch from the turf -- this strategy causes less stress to the grass for faster recovery. Excessive thatch buildup thicker than 1 inch requires a dethatching machine, or vertical mower.