Trinity County
Assessor's Office
Property assessment data, parcel information, and assessor maps.
Recorder's Office
Recorded documents including deeds, maps, easements, and CC&Rs.
GIS / Parcel Viewer
Interactive online map with parcel boundaries, aerial imagery, and data layers.
Small rural county - limited online GIS
County Surveyor
Records of Survey, Corner Records, and survey-related filings.
County Surveyor services administered by the Transportation Department (parcel maps, subdivision maps, Records of Survey, Corner Records, lot line adjustments). No online index; records by request.
California Survey Requirements & Records
The statewide rules that govern surveys, maps, and monuments in Trinity County — plus our recorded-maps archive.
Search our archive of Records of Survey, parcel maps, and tract maps on file.
Parcel & tract map requirements, when a map is required, and recording rules.
Records of Survey, Corner Records, and monument preservation duties.
Trinity County falls in CCS Zone 1. Zones, naming, and usage rules.
Water, road, and easement boundaries; accretion, avulsion, and lateral support.
Boundary evidence priority: monuments, courses, distances, and area.
Recorded Map Examples in Trinity County
Every map type Trinity County records, with a real example on file where one has been archived.
Subdivision & Tentative Parcel Map Requirements
Municipal code citations, submittal checklists, and fees for the county and its largest city.
Trinity County
Tentative parcel maps: Trinity County Code, Title 16 (Subdivisions), Chapter 16.12 (Tentative Map) and Chapter 16.16 (Parcel Map) — minor land divisions (parcel maps) process a tentative map under Ch. 16.12 procedures and are finalized under Ch. 16.16; recording/corrections covered separately in Ch. 16.29 (Recording and Corrections of Maps).
Submittal checklist →Municode's live viewer (library.municode.com) blocks automated fetches (HTTP 403), so chapter/section numbers were confirmed via search-result page titles directly reflecting Municode's node IDs (e.g. 'Chapter 16.12 - TENTATIVE MAP', 'Chapter 16.16 - PARCEL MAP', 'Chapter 16.29 - RECORDING AND CORRECTIONS OF MAPS'), not by reading full section text. The checklist URL is the Planning Division's 'Tentative Parcel Map (Subdividing Land)' application PDF, which is a combined application-and-requirements form rather than a separate standalone checklist document — Trinity Planning does not appear to publish a separate checklist PDF.
Single-sourced to the county's official Surveyor fee schedule PDF (title block: 'SURVEYOR'). This review function is billed under the fee schedule as 'Surveyor' fees rather than a separate Planning Division tentative-map fee; Trinity does not have a standalone Planning fee line-item for tentative parcel maps in the sources found (Planning's Title 2.64.050 fee table in the municipal code could not be read directly — Municode blocked automated access — and Planning's own generic fee-schedule PDF/DOCX at trinitycounty.org/280 resolved to the Recorder's fee schedule content, not a distinct planning fee table). Could not find a second independent source restating this exact dollar figure; treat as single-sourced.
This is the Recorder's general 'Fee Schedule Effective January 1, 2026' PDF; it does not list a map-filing fee distinct from the standard per-page document recording fee, so parcel/final maps appear to be recorded under this general schedule. Single-sourced — a second corroborating page (e.g. a Board of Supervisors resolution) was not located in this session.
Weaverville
Weaverville is an unincorporated Census Designated Place and the Trinity County seat — it has no separate municipal government, subdivision ordinance, fee schedule, or recorder. All subdivision, recording, assessment, and surveying functions for properties in and around Weaverville are handled entirely by Trinity County (Community Development Department / Planning Division, physically located at 530 Main Street, Weaverville, CA 96093, phone (530) 623-1351 ext. 2).
Planning departmentSurveyor's Toolbox
Research tools that pair with county records — look up licensees, run coordinate work, and pull federal land records.
Search California PLS licensees by name or license number — match a surveyor of record.
State plane, geodetic, and grid-to-ground coordinate calculators.
Chains, rods, varas, US survey feet, and metric conversions.
Curve, traverse, area, and other everyday survey computations.
Field-tested calculator programs for COGO and curve stakeout.
Curated library of authoritative surveying links — BLM, NGS, Caltrans, and more.
Verify any CA land surveyor or engineer license (DCA search).
Original GLO plats, field notes, and federal land patents.
Geodetic control station datasheets from the National Geodetic Survey.
Statewide GIS data layers — parcels, boundaries, imagery, and more.