227 HYDROGRAPHIC MANUAL PaGE 82 



CASE VI.— The station mark is not re-marked or moved but one or more of the reference marks are 

 moved or one or more new reference marks are added. 



The original station name shall be preserved. The number of the reference mark moved shall be 

 canceled and the next consecutive unused number stamped on the disk. 



Example. — Reference mark No. 2 for "RAVEN 1925" is moved in 1940 but the station mark is not re-marked or moved. 



The reference mark shall be stamped "RAVEN No. 3 (or next consecutive unused number), 1925." If both reference marks are 

 moved, the new reference marks shall be designated Nos. 3 and 4, or the next consecutive unused numbers, and the year 1925. The 

 same shall apply if one or two new reference marks are established even though the two old reference marks are in good condition and 

 their positions are not disturbed. 



CASE VII. — The station mark in not re-marked or moved but the azimuth mark is moved. 

 In this case the azimuth mark shall be stamped with the name of the station, the year of the original 

 establishment, and the year it is moved. 



Example.— The disk in the azimuth mark for station "MIAMI, 1926" shall be stamped "MIAMI, 1926, Reset 1940." 



227. Description of Stations 



Descriptions of triangulation stations shall be typewritten on Form 525, Descrip- 

 tion of Triangulation Station, and submitted to the Washington Office in single copy 

 at the close of each season. When typing, it is advisable to make a carbon copy for 

 the party's records and for possible future reference. 



Notes pertaining to the description shall be made at the station at the time of 

 establishment or occupation, either in the record book or in a separate notebook carried 

 for that purpose. The complete description shall be written as soon as possible after 

 leaving the station. Do not defer writing the descriptions until the end of the season, 

 because the topography at the station sites may not be clearly visualized at that time, 

 resulting in vague and inadequate descriptions. 



In writing a description, first enter, at the top of the form, the data relative to the 

 name. State, county, year, reference-mark information, etc., and then write the detailed 

 description. If the space on the card is insufficient, continue the description on another 

 card, but not on the back of the same card. When more than one card is used for one 

 description, identify each additional card by the station name at the top, followed by 

 the word "continued" and number the series, "No. 1 of 2 cards," "No. 2 of 2 cards,'' 

 etc. 



In writing the detailed description, begin with a statement showing the class of 

 triangulation used in locating the station, and its general location with reference to 

 some well-known geographic feature, such as a city, town, village, island, cape, or point. 

 Follow with the detailed description and how to reach the station. If the station must 

 be approached by water, emphasize the best place to make a landing and the route to 

 follow to reach the station, should this information be of any advantage. (See also 

 2142.) Conclude the description with a line or two concerning each reference mark, 

 giving: 



First, the general direction (true) each is from the station mark, and 



Second, a brief description, should there be any essential divergence from the type as indicated 

 by the general note. 



For standard classification of marks and the appropriate note to use in each par- 

 ticular instance, see pages 112 to 114, Special Publication No. 145, Manual of Second- 

 and Third-Order Triangulation and Traverse. 



All descriptions of stations established near the shore shall include distances 

 measured from the station, normal to the high-water line, to characteristic and identi- 

 fiable features of the beach, top of bluff, riverbank, or any other erodable feature, 

 provided the distances do not exceed 200 meters. Since this information is for possible 



