User registration
Professional surveyors register to access CORS service verification and account tools.
01 — Explore in georeferencesgh
Nationwide CORS infrastructure
georeferencesgh
National CORS & geodetic reference portal
Official control system for Ghana grid 1st order active control— homogenizing measurement methods and modernizing land cadastre and management for professional surveyors.
Partners
LC
Lands CommissionLG
LISAGGX
GMX Ghana47+
Active stations
24/7
Monitoring
95–100
Target coverage
100%
Official grid values
Nationwide CORS infrastructure
GMX Ghana has built a comprehensive network across Ghana with standardized installation methodology and always-on monitoring—so your field work stays tied to authoritative references.
- 47+ active stations nationwide
- 24/7 system monitoring
- Official Ghana Grid values
- Professional surveyor registration
Map preview
Station footprint across Ghana—interactive map integration can plug in here.
Professional geodetic services
Supporting surveyors with reliable CORS data for official land cadastre and geodetic work in Ghana.
Our services
Comprehensive CORS solutions for professional surveyors and land management.
Job management
Create and manage surveying jobs—point calculations, RINEX requests, and project tracking.
02 — Explore in georeferencesghData access
Download RINEX from stations or VRS data with flexible time windows and coordinates.
03 — Explore in georeferencesghPayment processing
Secure online payments with instant receipts for surveying services.
04 — Explore in georeferencesghQuality control
Submission validation and QC by SMD for calculated field measurements.
05 — Explore in georeferencesghNetwork expansion
15–20% annual growth toward 95–100 stations for full national coverage.
06 — Explore in georeferencesghgeoreferencesgh station IDs update
Station codes have been updated on the portal. Search or expand a region to compare retired and active codes.
Old — retiredNew — activeSame
Ashanti · 6 stations
| Site | Old code | New code |
|---|---|---|
| BRRI, Kumasi | KMSI | KMSI |
| GWCL, Adum - Kumasi | GST7 | SGA1 |
| GWCL, Obuasi | GS14 | SGA2 |
| Adum - Kumasi - LISAG | LSKS | SGA3 |
| GWCL, Konongo | GST9 | SGA4 |
| GWCL, Asante Mampong | GS21 | SGA5 |
Bono East · 1 station
| Site | Old code | New code |
|---|---|---|
| GWCL, Techiman | GS17 | SB01 |
Bono · 1 station
| Site | Old code | New code |
|---|---|---|
| GWCL, Sunyani | GS13 | SGB1 |
Central · 3 stations
| Site | Old code | New code |
|---|---|---|
| GWCL, Winneba | WINN | SGC1 |
| GWCL, Cape Coast | GS20 | SGC2 |
| University of Education, Winneba - LISAG | WINE | SGC7 |
Eastern · 4 stations
| Site | Old code | New code |
|---|---|---|
| All Nations University, Koforidua | LSKO | SGE2 |
| GWCL, Nkawkaw | GS10 | SGE1 |
| GWCL, Akim Oda | GS11 | SGE3 |
| Akim Oda - LISAG | LSAO | SGE4 |
Greater Accra · 7 stations
| Site | Old code | New code |
|---|---|---|
| SMD-Examination, Accra | EX1A | EX1A |
| Kokrobite, Accra | GST2 | SG03 |
| GWCL, Dodowa | GST1 | SG04 |
| GWCL, Big Ada | GST3 | SG05 |
| Dawa Industrial Enclave, Dawa | DAWA | SG06 |
| Lekma Hospital Manet Road, Accra | BASE | SG07 |
| The LISAG House, Labone - Accra | LSHQ | LSHQ |
North East · 2 stations
| Site | Old code | New code |
|---|---|---|
| East Mamprusi Municipal Assembly, Nalerigu | NARI | SNE1 |
| Chip Compound, Nasia | NASI | SNE2 |
Northern · 3 stations
| Site | Old code | New code |
|---|---|---|
| GWCL, Yendi | GS18 | SGN1 |
| Bimbila | BIMB | SGN2 |
| SMD Office, Tamale | GS15 | TAML |
Oti · 2 stations
| Site | Old code | New code |
|---|---|---|
| Krachi East Municipal Assembly, Dambai | DAMB | SOT1 |
| GWCL, Jasikan | JASK | SOT3 |
Savanna · 4 stations
| Site | Old code | New code |
|---|---|---|
| West Gonja Municipal Assembly, Damango | DAMA | SGS1 |
| Ghana Education Service, Sawla | SAWL | SGS2 |
| Chip Compound, Banda Nkwanta | BAND | SGS3 |
| GWCL, Salaga | SALA | SGS4 |
Upper East · 2 stations
| Site | Old code | New code |
|---|---|---|
| SMD Office, Bolgatanga | BOLG | BOLG |
| GWCL, Navrongo | NAVR | SUE1 |
Upper West · 3 stations
| Site | Old code | New code |
|---|---|---|
| GWCL, Wa | WAWA | SUW1 |
| Municipal Assembly, Jirapa | JIRA | SUW2 |
| Sisala East Municipal Assembly, Tumu | TUMU | SUW3 |
Volta · 3 stations
| Site | Old code | New code |
|---|---|---|
| GWCL, Ho - LISAG | GHW2 | SGV1 |
| GWCL, Kpando | KAPN | SGV2 |
| GWCL, Aflao | GHW3 | SGV3 |
Western North · 4 stations
| Site | Old code | New code |
|---|---|---|
| Aowin Municipal Assembly, Enchi | ENCH | SWN1 |
| Suaman District Assembly, Dadieso | DADI | SWN2 |
| Bia West District Education Service, Essam-Dabiso | YAMA | SWN3 |
| Lands Commission, Sefwi Wiawso | SEFW | SWN4 |
Western · 5 stations
| Site | Old code | New code |
|---|---|---|
| GWCL, Takoradi | GS19 | SGW1 |
| GWCL, Axim | GS16 | SGW2 |
| GWCL, Elubo | GS12 | SGW3 |
| CMB Technical Surveys, Takoradi - LISAG | LISA | SGW5 |
| UMAT, Tarkwa - LISAG | TARK | SGW6 |
Professional geodetic services for professional surveyors
Create an account to manage jobs, request data, and complete secure payments in one place.