Professional research map

Colorado PLSS Monument Records Map

MAP TOOLSResearch workspace

FIND A RESEARCH AREA

BUILT BYTopo ColoradoGeospatial consulting services

MAP LAYERS6 ON

BASEMAP

Research index, not a legal survey. Verify every record and coordinate against the official document and controlling survey evidence.

Preparing ColoradoStarting the map engine

STATEWIDE EXPLORERColoradoZoom in for township / range

Connecting to official map services…

39.00000, -105.55000 · Z5.7

Linked record PLSS corner Township / section Meridian area

RESEARCH WORKSPACE

Find monument evidence faster.

Move from statewide orientation to section-corner detail without downloading a separate county file.

Choose a countyUse search, the county menu, or click the map.

Click a research pointThe map calculates its meridian, township, range, and DORA index reference.

Open official recordsReview direct document matches or continue with the exact search in DORA.

County document indexDouglas · Jefferson · El Paso · Larimer · Weld

Coverage is expanding. Gold points have filed DORA records matched to BLM corner identifiers.

Updated 2026-09-15. Irregular references and uncertain matches are held for review. Missing gold points do not mean missing records; use the green corner search too.

AUTHORITATIVE SOURCESBLM Colorado PLSSTownships, sections & corner coordinates BLM GLO RecordsHistoric survey plats & field notes Colorado DORA AESOfficial monument record documents NOAA NGS DatasheetsHorizontal, vertical & CORS control marks

Statewide DORA search
Gold points identify indexed records in Routt and the expanding county coverage areas. Green BLM corners support statewide DORA searches. An area without gold points may still have filed records.