Reports on former surveys should be checked against the notes of these surveys. The bearings and distances of lines of former surveys that are wholly within the survey or a claim of the survey must be given. The area statement should be reviewed to make certain that conflicts are given in chronological order and that any exclusion or combination of exclusions can be ascertained. The magnetic declination must be given. The beginning and completion dates of the survey must be given. The survey cannot begin prior to the date of order. =5–13= Calculations: Calculations may begin by computing the solar observation; the declination should be verified, also the latitude and longitude. The survey should close. Lode claims should have a perfect closure; irregular claims such as placers should close within 0.5 feet in 1,000 feet. The statutory length and width of lode claims may not be exceeded. The width at right angles to the lode cannot exceed 300 feet on either side. The section corner ties within the survey may be checked by closure, using short ties between claims of the survey; each section tie and short tie should be used in at least one closure. The closures should not exceed 0.5 feet in 1,000 feet. (It may be necessary to report the longer section ties to an even number of seconds such as 15″.) The section corner ties should be checked against those given in conflicting surveys using the short ties given to these claims along with the reported boundaries. Such closures, depending on the length of the ties, should not exceed 10 feet. If they do exceed this distance, the correct tie should be given under “OTHER CORNER DESCRIPTIONS AND SUPPLEMENTAL DATA” provided that the corner from which the tie was made was recovered. If the corner was not found, the error cannot be reported. The same applies to short ties between conflicting surveys, but the allowable error should be within the 1:2000 limit. If more than one section corner is tied, the bearing and distance along the section line should be checked, reporting any appreciable difference under “OTHER CORNER DESCRIPTIONS AND SUPPLEMENTAL DATA.” The bearings and distances of intersections with lines of prior surveys should be correctly stated. This may be verified by closure, but if a closure of 1:2000 is not obtained, it will be necessary to calculate the intersections by solving triangles, to determine where the error lies. Such intersections should check with 0.2 feet. From the intersections obtained, the areas of conflict should next be calculated. If the final plat is drawn at a scale of 1″ = 200′, conflicts with a conflict, i.e. double conflicts, may be checked by dividing the area of conflict into triangles and scaling the base and altitude. The mineral surveyor, however, must actually calculate these areas. All areas should check within 0.02 acres.