| 8-12. The introductory statement includes: |
| (1) History of prior pertinent surveys. |
| (2) The surveys encompassed in that book of field notes. |
| (3) Description of unusual survey situations and special methods used. |
| (4) A statement that the survey was executed in accordance with specifications set forth in the Manual of Surveying Instructions and the special instructions. |
| (5) How the directions of lines were determined and that they refer to the true meridian. |
| (6) In the case of a dependent resurvey, a statement to the effect that "Preliminary to the resurvey the lines of the original survey were retraced and search was made for all corners and other calls of the record. Identified corners were remonumented in their original positions; lost corners were restored and monumented at proportionate positions based on the original record. The retracement data were thoroughly verified and only the true line field notes are given herein." |
| (7) The geographic position of a corner of the survey - the southeast township corner if practicable - and how it was determined. |
| (8) The observed magnetic declination. |
| 8-13. The items of information to be included in the field notes are described in section 3-126. The description required for particular subjects is covered by the following list. |
| Amended monuments, section 3-36. |
| Base line, method of alining, section 3-11. |
| Corner descriptions in general, sections 4-3, 4-6, 8-14. |
| Corner descriptions, markings - form to follow |
| Iron posts and brass tablets, sections 4-24 - 4-46. |
| Stone monuments, sections 4-48 - 4-62. |
| Tree monuments, sections 4-64, 4-67 - 4-81. |
| Corner descriptions, other references |
| Closing corners, sections 5-41, 8-16(4)(5)(6). |
| Location monuments, sections 10-32, 10-33, and 10-34. |
| Quarter-section corners, sections 8-16(7)(8)(10). |
| Sixteenth-section corners, section 8-16(8)(10). |
| Use of non-standard monuments, section 4-7. |
| Witness corners, sections 4-15 and 4-82. |
| Witness points, sections 4-17 and 4-82. |
| Corner accessories |
| Bearing trees, sections 4-85, 4-86, 4-87, 4-96 - 4-114. |
| Bearing objects, sections 4-85, 4-89, and 4-90. |
| Memorials, section 4-91. |
| Mound of stone, section 4-92. |
| Pits, section 4-95. |
| Reference monuments, section 4-82. |
| Dependent resurvey, sections 6-28, 6-29, and 6-30. |
| Field examination, sections 6-22 and 6-50. |
| Independent resurvey, sections 6-49(5)(6)(9) and 8-15. |
| Magnetic declination, section 2-18 and 3-126(19). |
| Meander lines, sections 3-119, 3-121, 3-122, and 3-123. |
| Measurement of standard line, section 3-9. |
| Metes-and-bounds surveys, sections 7-16 and 9-82. |
| Mineral segregation surveys, sections 7-41 and 7-42. |
| Parts of sections, section 3-94. |
| Recovered monument, sections 3-32, 4-3, and 6-28. |
| Report on swamp and overflowed land, section 7-98. |
| Resurveys, section 6-1. |
| Resurveys prior to extension, section 3-102. |
| Resurveys prior to subdivision of township, section 3-32. |
| "Small tract" surveys, section 7-37. |
| Soil classification, section 7-100 - 7-103. |
| Subdivision of sections, section 3-75. |
| Subdivision of township, sections 3-53 and 3-67. |
| Testimony about corner point, section 5-11. |
| Township exteriors, section 3-23. |
| Township surveys, section 7-30. |
| Triangulation, section 2-6. |
| Unofficial marks at corner, section 5-12. |
| Examples of application are found in the sample field notes in the appendix. |
| When it is necessary to refer to a reconstructed corner monument described in another book of field notes of concurrent resurveys, a reference is given to the particular field notes in which the description of that monument will be found. For example: "the cor. of secs. 3, 4, 33, and 34, on the N. bdy. of the Tp., previously described in the field notes of the dependent resurvey of the S. bdy. of T. 24 S., R. 3 W., of this assignment." |
| The complete description of a monument is entered once only. In subsequent notes the expression "heretofore described" may be employed when referring to a point already occupied in the new survey. All corners recorded in the same book of field notes are referred to by name only, without repeating the description of the monument, as for example: "the cor. of secs. 2, 3, 10, and 11" or "the standard cor. of secs. 33 and 34" or "the cor. of secs. 5, 6, 31, and 32, on the S. bdy. of the Tp." |
| Historical references to the field notes and plats of the earlier surveys, to the lines more recently resurveyed that form a portion or portions of the plat outline, to lines run and marked by the county surveyor and similar surveys found acceptable for the identification of tract boundaries, etc., should be incorporated in the introductory part of the field notes of the independent resurvey. |
| (1) Complete descriptions are given in those cases where the retracement is not followed by resurvey procedure or the subdivision of a section. |
| (2) No detailed description of the retracement is required in the field notes when the retracement is followed by a resurvey. In that case the procedure is described in the introductory statement, and the corner monumentation and lines (corrected to true lines) are described in the field notes of the dependent resurvey. When the section lines are retraced as a preliminary to subdivision of a section, it is usually necessary to resurvey them in order to establish sixteenth-section corners on the section lines. |
| (3) The directions and lengths of the true lines; the descriptions of natural objects, stream crossings, principal slopes, and other topographic calls; the descriptions of the physical, collateral, and record evidence or testimony concerning the old monuments and their accessories; and all new monumentation are given in the true-line field notes. |
| (4) The descriptions of closing corners of the exterior and subdivisional surveys originally placed on the standard parallels or township exteriors where the record call s for two sets of corners, and similarly within partially subdivided townships where there are offsets to be dealt with, will be given in the field notes of closing lines of the exterior or subdivisional survey that is being retraced or resurveyed. |
| (5) When a closing corner monument is found which marks a line that is not being concurrently resurveyed, a connecting course and distance and a complete description of the monument will be given in the field notes of the retracement or resurvey of the line closed upon. |
| (6) The new monument for a closing corner in those cases where required, will always be placed at the true point of intersection, and so stated clearly. An off-line monument will be marked AM, connected by course and distance, and fully described in the field notes of the closing line. |
| (7) Intermediate quarter-section corners between closing corners will be recorded in the field notes of the closing section immediately following the description of the closing line which completes the survey of the section. A cross reference will be entered in the field notes of the retracement or resurvey of the line closed upon. |
| (8) The descriptions of the section, quarter-section, and sixteenth-section corners on the section boundary lines, as required for the subdivision of a section, will be given in the field notes of the retracement or resurvey of the section boundaries. |
| (9) Random or trial lines that are required for the subdivision of a section are treated in a prefacing statement concerning the type of work to be performed in one or more sections, but no field-note statement of the detail is necessary. |
| (10) The descriptions of the center quarter-section corner, and of the sixteenth-section corners within the section will be carried in the true-line field notes of the subdivision-of-section lines. |
| 8-18. Signed statements relating to the positions of lines or corners are placed in the field notes following the general description. The record of the names of the assistants and the certificates of the surveyor and of approval will take the forms given in the specimen field notes in the appendix. |