Incorporated in the Northwest Territories in 1996, Ollerhead & Associates Ltd. is a 100% Northern owned and operated firm of Canada Lands Surveyors and Engineers.


Real Property Reports
A Real Property Report (RPR) is a legal document which shows the location of visible improvements relative to property boundaries.
Subdivision Surveys
A Subdivision Survey is a survey that is carried out to establish new land parcel boundaries and the associated titles for the parcels.
Topographic Surveys
It shows visible improvements on a property in relation to the property boundaries, as well as showing contours and elevations throughout the site.
Property Boundary Surveys
It is a legal survey showing the boundaries of your lands, together with the current location of any structures or encroachments on the lands.
Condominium Surveys
A Condominium Survey makes it possible to divide ownership of land or divide ownership of units within a building. 
Mineral Lease Surveys & Claim Staking
Ollerhead & Associates Ltd. has extensive experience staking mineral claims and surveying mineral leases throughout the Northwest Territories and Nunavut. Survey crews are deployed to complete mineral claims efficiently and cost effectively.
Land Claim & Indian Reserves Surveys
We use static and real-time GNSS methodologies, in conjunction with Precise Point Positioning online service, to provide accurate positioning for isolated boundary corners.
Control Networks & Deformation Monitoring
Ollerhead & Associates Ltd.  has the experience and capability to place and survey high precision horizontal and vertical control monuments for a variety of purposes. We are also involved in the ongoing Deformation Monitoring of water retention dikes and open pit high walls.
Construction Surveys
Provide a wide range of construction-related surveying services to a wide range of clients—from topographic and as-built surveys to pile location and facility stakeouts, and everything in between.
ACAD Drafting
CAD can be defined as the use of computer systems to assist in the creation, modification and optimization of a design.
Remotely Piloted Aircraft System\UAV
The time and cost saving benefits of collecting information by RPAS (Remotely Piloted Aircraft Systems) are being realized by an increasing number of construction and engineering operations.
Lidar Scanning
Lidar is commonly used to capture high-resolution high-accurate 3D data of complex sites in a short period of time.
Bathymetric Surveys
Bathymetric surveys allow  measurement of the depth of a water body as well as map the underwater features of a water body.
Ground Penetrating Radar (GPR)
 GPR is a method of non-destructive detection of subsurface infrastructure.
Void Scanning
C-ALS is a unique laser system that gives you underground mapping capabilities in inaccessible cavities. 

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