Midwest & Plains
Iowa law requires a section-corner certificate documenting the restoration of PLSS corners be filed with the county recorder (and county auditor). A corner certificate describes the monument, accessories, and ties.
Filing Requirements
When a public-land corner is found or restored, a corner certificate describing the monument, accessories, and ties is prepared and filed with the county recorder.
County Recorder / County Auditor
Section Corner Certificate (county-filed)
State → County → City. Browse PLSS corner datasets and corner-record sources, then city and county centerline monuments. Point-only datasets are marked separately from recorded documents. General control and benchmarks are excluded.
22 relevant dataset listings · checked 2026-11-08. Unlisted places are not yet researched—not “no records.”
Corner-record index — PLSS identity is record-specific · Geolocated — verified
Publisher/account: Black Hawk County Engineer
Record / identifier convention from supplied list: LScert-{sec}{T}{R}-{corner}.pdf in /T89R11/ e.g. LScert-198911-SE.pdf
Verified source geometry sample (WGS84): 42.497730290972285, -92.18003685098968 · not a surveyed corner assignment
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00 · Census county 19013
PLSS corner positions — documents not verified · Geolocated — verified
Publisher/account: Boone County IA · Service publishes attachments
Record / identifier convention from supplied list: TOWNSHIP2 e.g. 083N028W + section + corner; attachments
Verified source geometry sample (WGS84): 42.0226826542669, -94.14471538105589 · not a surveyed corner assignment
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00 · Census county 19015
PLSS corner positions — documents not verified · Geolocated — verified
Publisher/account: Cerro Gordo County GIS · Service publishes attachments
Record / identifier convention from supplied list: {T}{R}{sec}{corner} e.g. 941901C; attachments
Verified source geometry sample (WGS84): 42.98707406291002, -93.03395408974167 · not a surveyed corner assignment
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00 · Census county 19033
Corner-record index — PLSS identity is record-specific · Record index — no direct map layer supplied
Publisher/account: Chickasaw County Engineer
Record / identifier convention from supplied list: {township}_{sec}_{n}_{id}.pdf e.g. new_hampton_27_3_76003.pdf
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00
Public source page checked; no direct feature layer supplied for this listing.
Corner-record index — PLSS identity is record-specific · Map viewer — no direct feature layer supplied
Publisher/account: Clinton County IA
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00
Public source page checked; no direct feature layer supplied for this listing.
Corner-record index — PLSS identity is record-specific · Record index — no direct map layer supplied
Publisher/account: Crawford County IA
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00
Public source page checked; no direct feature layer supplied for this listing.
Corner-record index — PLSS identity is record-specific · Service unavailable at last check
Publisher/account: Franklin County IA Engineer
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: None recorded
HTTP 404: Not Found
Corner-record index — PLSS identity is record-specific · Record index — no direct map layer supplied
Publisher/account: Greene County IA
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00
Public source page checked; no direct feature layer supplied for this listing.
Corner-record index — PLSS identity is record-specific · Record index — no direct map layer supplied
Publisher/account: Jackson County IA Engineer
Record / identifier convention from supplied list: {township}_{sec}_{id}.pdf e.g. bellevue_30_54397.pdf
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00
Public source page checked; no direct feature layer supplied for this listing.
Corner-record index — PLSS identity is record-specific · Record index — no direct map layer supplied
Publisher/account: Jones County IA
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00
Public source page checked; no direct feature layer supplied for this listing.
Corner-record index — PLSS identity is record-specific · Record index — no direct map layer supplied
Publisher/account: Keokuk County Recorder
Record / identifier convention from supplied list: section_corner_index_7612.pdf
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00
Public source page checked; no direct feature layer supplied for this listing.
PLSS corner positions — documents not verified · Geolocated — verified
Publisher/account: Linn County IA
Record / identifier convention from supplied list: Recorder instrument e.g. 10305-00442 (Book-Page) with AVA link
Verified source geometry sample (WGS84): 42.13929976015914, -91.80491544166587 · not a surveyed corner assignment
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00 · Census county 19113
Corner-record index — PLSS identity is record-specific · Record index — no direct map layer supplied
Publisher/account: Lyon County IA
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00
Public source page checked; no direct feature layer supplied for this listing.
Corner-record index — PLSS identity is record-specific · Record index — no direct map layer supplied
Publisher/account: Marion County IA
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00
Public source page checked; no direct feature layer supplied for this listing.
PLSS corner positions — documents not verified · Not yet verified
Publisher/account: Muscatine Area GIS (MAGIC)
Record / identifier convention from supplied list: Tie sheets as attachments
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T11:08:15.291562+00:00 · Last successful verification: None recorded
No GIS endpoint supplied; this is the supplied document or information-page example only.
Corner-record index — PLSS identity is record-specific · Geolocated — verified
Publisher/account: Pottawattamie County GIS
Record / identifier convention from supplied list: location {T}{R}{sec}{corner} e.g. 743807NE; Book/Page; unrecorded e.g. 744035SQUARTERCORNER.PDF
Verified source geometry sample (WGS84): 41.232108674992055, -95.25135709287103 · not a surveyed corner assignment
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00 · Census county 19155
PLSS corner positions — documents not verified · Geolocated — verified
Publisher/account: Scott County IA GIS
Record / identifier convention from supplied list: CORLINK e.g. COR1630; tie books T79N_R03E_05_NWNWNW.pdf
Verified source geometry sample (WGS84): 41.62566334353379, -90.76326949848054 · not a surveyed corner assignment
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00 · Census county 19163
Corner-record index — PLSS identity is record-specific · Record index — no direct map layer supplied
Publisher/account: Story County IA
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00
Public source page checked; no direct feature layer supplied for this listing.
PLSS corner positions — documents not verified · Restricted source
Publisher/account: Wapello County IA
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: None recorded
Status changed 2026-11-08T04:28:53.354908+00:00: Service unavailable at last check → Restricted source
HTTP 403: Forbidden
Corner-record index — PLSS identity is record-specific · Record index — no direct map layer supplied
Publisher/account: Washington County IA
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00
Public source page checked; no direct feature layer supplied for this listing.
PLSS corner positions — documents not verified · Geolocated — verified
Publisher/account: Woodbury County / Siouxland GIS
Record / identifier convention from supplied list: ID {T}{R}{sec}{corner} e.g. 894201NE.tif in /sectioncorners/8942/
Verified source geometry sample (WGS84): 42.54725251376942, -95.76009554388632 · not a surveyed corner assignment
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00 · Census county 19193
Corner-record index — PLSS identity is record-specific · Record index — no direct map layer supplied
Publisher/account: Wright County IA
POINTIDs, recording information & saved positions ↗
Last checked: 2026-11-08T04:28:53.354908+00:00 · Last successful verification: 2026-11-08T04:28:53.354908+00:00
Public source page checked; no direct feature layer supplied for this listing.
Corner-Plot Workflow
Upload a Iowa Corner Record PDF. Corner-Plot reads the form with OCR — extracting the surveyor name, township-range-section, monument description, and every bearing and distance tie. The corner is geo-located automatically across the PLSS grid, assigning a GCDB-standard 21-character Point ID and a confidence rating of High, Medium, or Low.
When the monument sits at or near a roadway, Corner-Plot brings up Google Street View with its full capture history — up to 20 years. AI analyzes each date and returns a structured monument-condition verdict. A printable field prep report covers the resolved coordinate, aerial tie overlay, monument classification history, and original GLO field notes.
Other PLSS States
Anyone can contribute a DWG or DXF. Uploaded files are public, visitor-contributed templates, not agency-verified forms.