Box L19
Contains 2 Results:
Survey ledger for Rowland Coal Company, Division of Consolidation Coal Company, Inc., Itmann No. 3 Mine and other locations, Check surveys/tabulations of traverse, 1979-1986, undated
Series IV. Ledgers, 1916-1993, contains 42 boxes, totaling 45.02 cu. ft. It primarily consists of survey record books (not field notebooks). Many record "Survey By", "Traverse by", Notebook No., Page No., Station, Azimuth, Reduced Vernier, Cosine, Horizontal Distances, Sine, Latitude (North and South), Departure (East and West), Sums of Latitude (N&S) and of Departure (E&W), Remarks. N.B.: TT looks like pi sometimes.
Engineering Department Traverse ledger, Heanagar Mine, Lego Lease, Hugh Branch, Midget Coal Company, No. 1 Mine
Series IV. Ledgers, 1916-1993, contains 42 boxes, totaling 45.02 cu. ft. It primarily consists of survey record books (not field notebooks). Many record "Survey By", "Traverse by", Notebook No., Page No., Station, Azimuth, Reduced Vernier, Cosine, Horizontal Distances, Sine, Latitude (North and South), Departure (East and West), Sums of Latitude (N&S) and of Departure (E&W), Remarks. N.B.: TT looks like pi sometimes.