1) (blank) is the system under which the original 13 Colonies were surveyed
2) (blank) is a dimension drawing that shows the data pertaining to a land survey and the legal description of the land parcel.
3)Contour lines that cross streams and rivers always point (blank).
4) (blank) is a term used described contours which show are closely spaced and include high points or summits.
5)Fixed GPS broadcast stations enable users to make differential measurements to other points whose positions are needed. In the US, there are two such networks two such networks of broadcast stations, name one (blank)