Surveying and Site Plan

1. Actual north, as opposed to the arbitrary Plan North.
5. In angular measurement, a unit of 1/60th of a minute and 1/3600th of a degree.
7. A known point of reference all other unknown points are measured from.
11. The establishment of differences in elevation between two or more points with reference to a datum.
13. Lines Lines on a Site Plan to indicate the changing of elevation of the land.
15. A system of satellites used to locate points on earth.
17. Line A line shown on a site plan representing the limits of a plot of land.
18. A measure of direction expressed as degrees east or west of north or south.
19. Arrow An arrow shown on a plan view drawing indicating the orientation of the structure.
20. A system of classifying the use and development of land.

2. The difference between the upper and lower stadia that estimate the distance from the instrument to the rod.
3. A sight on a measuring rod to a known point.
4. Used to determine legal boundaries, construction surveys and small area/topographic surveys.
6. An area of land marked for use and maintenance of utilities.
8. A unit of angular measure equal to 1/60th of a degree.
9. Another word for a known point of reference.
10. North An assumed north direction that is aligned with the building
12. The locations and details of land features.
14. A list of symbols and their corresponding meanings.
16. A sight on a measuring rod to an unknown point.