... Assistant; Deputy Supervisor; Forest Ranger; Forest Examiner; Assistant Forest Ranger; and Deputy Forest Supervisor Surveyor. ... Polaris at elongation was the earlier method commonly used. ... or U.S.L.M.a#39;s, are covered quite extensively in Section l0-32 through l0-34 of the l973 B.L.M. Manual of Surveying Instructions.
|Title||:||Technical Papers of the American Congress on Surveying and Mapping|
|Author||:||American Congress on Surveying and Mapping, American Congress on Surveying and Mapping. Meeting|