Topo-Plot processes USGS 3DEP LiDAR into contours, bare-earth terrain, and classified point clouds in NAD83 State Plane and NAVD88 US survey feet. Source collection dates and reported quality are shown separately from output grid resolution and point density.
Street View forward intersection supports visible-utility reconnaissance from imagery. Imagery-derived locations require appropriate field verification; no generic positional accuracy is guaranteed.
| USGS 3DEP datasets | 2,269 |
| States covered | 48 |
| Horizontal datum | NAD83 State Plane Coordinate System |
| Vertical datum | NAVD88 US survey feet |
1-ft minor and 5-ft major contours derived from the bare-earth DTM on NAD83 State Plane. Imports directly into Civil 3D or ArcGIS without conversion.
Source-derived ground elevation surface on State Plane coordinates, NAD83 horizontal and NAVD88 vertical. Accuracy depends on the source collection and processing; this is not a certified field survey.
Multi-directional hillshade from the DTM. Reveals drainage channels, earthwork scars, and micro-terrain at a glance. Included with every DTM job.
First-return surface capturing vegetation and rooftops. Pair with the DTM for cut/fill estimates and canopy height calculations.
Per-cell maximum vegetation height above bare-earth. Foundation for right-of-way clearance, riparian buffer studies, and forest inventory.
2-ft interval canopy contours derived from the CHM — outlines crown extent and height at every level. Use for tree preservation plans and setback analysis.
Degree-based slope and aspect rasters for grading suitability, drainage direction, and site feasibility.
Full classified LAZ with Height Above Ground dimension. Preview in the built-in 3D viewer or import into Civil 3D, CloudCompare, or PDAL.
True-color ortho clipped to your boundary and reprojected to State Plane. Ready to underlay drawings in CAD or GIS.
County parcel polygons with APN and address for your project area. 33 states covered from official county and state GIS sources.
Existing structure outlines for setback checks, demolition scoping, and site context mapping.
All twelve deliverables in a single job — contours, terrain, hillshade, canopy analysis, point cloud, imagery, parcels, and buildings.
Search any address, click a parcel directly on the map (33 states), or draw a custom polygon. The same first step as ordering a field survey — from your desk.
Choose individual products or the full topo package. The platform auto-selects the best available USGS 3DEP dataset, deducts credits, and starts processing immediately.
DXF, GeoTIFF, LAZ, and KMZ outputs in NAD83 State Plane with NAVD88 US survey foot elevations. Availability, processing time, and accuracy depend on the source collection and project.
Use Street View forward intersection to review visible utilities from multiple angles and dates. Locations are imagery-derived reconnaissance, not a verified field survey.
Scope the site before mobilizing. Pull ground elevations, NAVD88 contours, and the classified point cloud for the project area — then run a utility scan so crews arrive knowing the right-of-way.
Review source-derived ground elevations for grading and drainage planning. Use Street View visible-utility reconnaissance to flag potential conflicts for field verification, not as a field survey or verified utility locate.
Understand the land clearly — terrain relief, tree canopy, slope, and parcel boundaries — with outputs that open in Google Earth, no technical software required.
Architects, planners, and infrastructure staff use the parcel, building, and utility overlays to understand site context and right-of-way conditions from a single tool.