New USGS Mapping Tool Helps Track the Future of Elevation Data
October 2026 | Abbie Jones Consulting, PSC
Accurate information about the shape and elevation of the land is fundamental to successful engineering and land development projects. A new tool from the U.S. Geological Survey (USGS) is making it easier to track when updated elevation data may become available.
On September 30, 2026, the USGS announced the release of its 3D National Topography Model Data Acquisition Project Tracker, an interactive resource designed to provide information about lidar data collection projects across the United States.
What Is Lidar?
Lidar, short for Light Detection and Ranging, is a remote sensing technology that uses laser measurements to collect detailed information about ground surfaces and surrounding features.
Lidar-derived elevation data supports a wide range of applications, from floodplain analysis and watershed planning to transportation engineering, preliminary site evaluations, and infrastructure management.
What Does the New Tracker Do?
The USGS developed the new tool to help users understand the status of elevation data acquisition projects conducted through the 3D Elevation Program (3DEP).
Users can view active and recently completed projects, follow acquisition milestones, and review estimated project completion dates.
This is particularly helpful for engineers, surveyors, planners, and public agencies that rely on elevation information during early project development.
Importantly, the availability of lidar data does not eliminate the need for project-specific land surveying. Published datasets may not reflect current site conditions or meet the precision, verification, or deliverable requirements of a particular assignment.
Why This Matters for Property Owners and Developers
Reliable topographic information supports informed decisions long before construction begins.
Understanding site elevations and existing drainage patterns can help identify potential grading concerns, determine preliminary development feasibility, and guide engineering evaluations.
For example, elevation information can assist with identifying drainage pathways, evaluating proposed building locations, and planning access roads or utility corridors.
Publicly available mapping tools can provide valuable background information, while field surveys establish the project-specific conditions needed for design.
Combining Technology with Field Expertise
At Abbie Jones Consulting, PSC, we recognize the importance of combining modern geospatial resources with sound surveying practices.
As mapping technology advances, tools such as the USGS 3DNTM Tracker provide additional resources for understanding land conditions and supporting informed engineering decisions.
The most effective projects begin with reliable information, appropriate field verification, and a clear understanding of the property's characteristics.
Sources:
U.S. Geological Survey, 3D National Topography Model Data Acquisition Project Tracker Now Available, September 30, 2026.
USGS, 3D Elevation Program.
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