TYING IN. 51 



TYING IN. 



It is frequently necessary to make surveys of ranger 

 stations or for timber sales in areas which have not been 

 previously surveyed or mapped. It is imperative that 

 some connection should be surveyed between the near- 

 est or most convenient established point and the initial 

 point of the survey which is to be made. Otherwise the 

 survey will not determine the location of the area under 

 consideration. The nature of the country and the dis- 

 tance necessary to be run will suggest which of the fol- 

 lowing methods may be employed: 



(1) Measure a line north, south, east, or west to in- 

 tersect a Government survey line. Then tie to the 

 nearest corner, quarter corner, meander corner, mile- 

 post, grant corner, or other point which is of official 

 record. 



(2) Or run a traverse (meander) over a road, trail, 

 open or easy country to such points. 



(3) Or if no land office surveys have been made 

 nearer than, say, 5 miles, but there is a Geological Sur- 

 vey sheet, then tie to a bench mark, triangulation sta- 

 tion, forks of a road, forks of a stream which has not 

 changed its bed, or a house which is shown on the sheet. 

 Accompany your report with a tracing or description 

 which will show unmistakably the point used. If you 

 tie to a mineral monument or to some corner of a pat- 

 ented mining claim, give a clear description. 



(4.) Or if no official surveys have been made within 

 practicable distance, proceed as follows: Establish 

 and witness a permanent monument, marked F S M- 

 This may be at the initial point of your survey. From 



