Oregon Historical County Records Guide
Clackamas County Records Inventory
Corner Survey Records
Series documents the establishment and/or restoration of survey corners or monuments by the county surveyor or registered land surveyors. Records include maps, field survey restoration notes, historical notes, and indexes. Information includes description of corners; existing markers; descriptions of new markers and any changes made to the locations; property owners; township, range, and section numbers; donation land claim information; date the new markers were set; and surveyor's signatures.
Records at the Clackamas County Development Services Building, Surveyor's Office File Room 311:
Bearing Tree Book [copies], vol. 1, 3, ca.1887-1956 (2 volumes);
[Bearing Tree Book-originals-with index], vol. 1-3, ca.1887-1956 (3 volumes);
Bearing Trees U.S. Service [includes various restored corner documents], vol. 4, ca.1890-ca.1978 (1 volume);
BT Originals [Bearing Tree Records], vol. 5-12, ca.1949-ca.1996 (1.50 cu.ft.);
[County Surveyor's Record-includes corner survey information], vol. 3-5, ca.1854-ca.1926 (3 volumes);
Crown Zellerbach File [Company Land Corner Monumentation Notes], vol. 1-2, 1945-1957 (2 binders);
DLC Corners [Donation Land Claim-Sketch and Bearing Tree Reference Book], n.d.-2008 (1 binder);
Index to File Drawers A Thru Z [indexes A to Z Letter Series maps, DTM plats, LP corner maps, and some surveys], ca.1853-ca.1985 (1 binder);
Map Index [Bearing Tree Visual Index], ca.1887-2009 (1 volume);
[Miscellaneous Maps and Plats-formerly "A-Z Letter Series," now "SN series"-includes road, bridge, subdivision, corner restoration, survey, and miscellaneous maps and plats], ca.1853-ca.1990 (ca.2000 maps and plats);
Not for Use [Bearing Tree Book-photocopies], vol. 4-12, 1926-ca.2000 (9 binders);
Oak Lodge Sanitary District Ties [Survey Point Description Card-Reconstitution Work of Survey Ties to Monuments-title varies], vol. 1-2, ca.1909-ca.1967 (2 volumes);
Public Land Corner Field Books [with gaps], vol. CS101-CS186, ca.1998-2011 (71 volumes);
Public Surveys in Clackamas County [includes corner restoration information-with index], vol. 1-2, 1851-ca.1890 (2 volumes);
USBT [United States Bearing Tree-Remonumentation Record], 1999-present (10 cu.ft.);
U.S. Field Notes [County Surveyor's Record-includes corner restoration information-with index], vol. 6, 1893-1894 (1 volume).
Records at the Clackamas County Development Services Building, Surveyor's Office Suite 325, Public
[Bearing Tree-Books], vol. 1-12, ca.1887-1988 (.50 inch of microfiche);
DTM Map Index [D.T. Meldrum Survey Plats Card Index-also indexes Crown Zellerbach land corner monumentation records as well as private surveys], ca.1890-ca.1987 (.10 cu.ft.).
Records at the Clackamas County Archives, Security Microfilm Storage:
[Bearing Tree Books], vol. 1-12, ca.1887-1988 (4 reels of microfilm).
Records at the Clackamas County Web Site:
CCSIS [Clackamas County Surveyor Information System-GIS database-includes corner survey, Donation Land Claim, private survey plat, subdivision plat, partition plat and related information], n.d.-present (Internet).