Topographic survey on the cloud.

Draw a boundary. Topo-Plot processes USGS 3DEP LiDAR for your exact site and delivers contours, bare-earth terrain, and classified point clouds — on the correct NAVD88 datum in NAD83 State Plane, exactly as a field survey would produce.

Street View forward intersection locates manholes, hydrants, valves, and poles from multiple dates and angles — sub-foot accuracy for off-site utility linework without a field visit.

Key Statistics

USGS 3DEP datasets2,269
States covered48
Horizontal datumNAD83 State Plane Coordinate System
Vertical datumNAVD88 US survey feet

Deliverables

Contour Lines — DXF · SHP · KMZ

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.

Bare-Earth DTM — GeoTIFF · KMZ

Ground-only elevation surface on State Plane coordinates, NAD83 horizontal and NAVD88 vertical — the same product a field topo survey delivers.

Hillshade Relief — GeoTIFF · KMZ

Multi-directional hillshade from the DTM. Reveals drainage channels, earthwork scars, and micro-terrain at a glance. Included with every DTM job.

Surface Model (DSM) — GeoTIFF · KMZ

First-return surface capturing vegetation and rooftops. Pair with the DTM for cut/fill estimates and canopy height calculations.

Canopy Height Model — GeoTIFF · KMZ

Per-cell maximum vegetation height above bare-earth. Foundation for right-of-way clearance, riparian buffer studies, and forest inventory.

Tree Crown Analysis — DXF · KMZ

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.

Slope & Aspect — GeoTIFF · KMZ

Degree-based slope and aspect rasters for grading suitability, drainage direction, and site feasibility.

Classified Point Cloud — LAZ

Full classified LAZ with Height Above Ground dimension. Preview in the built-in 3D viewer or import into Civil 3D, CloudCompare, or PDAL.

Aerial Imagery — GeoTIFF · KMZ

True-color ortho clipped to your boundary and reprojected to State Plane. Ready to underlay drawings in CAD or GIS.

Parcel Overlay — GeoJSON · KMZ

County parcel polygons with APN and address for your project area. 33 states covered from official county and state GIS sources.

Building Footprints — GeoJSON · KMZ

Existing structure outlines for setback checks, demolition scoping, and site context mapping.

Full Topo Package — ZIP

All twelve deliverables in a single job — contours, terrain, hillshade, canopy analysis, point cloud, imagery, parcels, and buildings.

How It Works

01. Define the Boundary

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.

02. Submit the Job

Choose individual products or the full topo package. The platform auto-selects the best available USGS 3DEP dataset, deducts credits, and starts processing immediately.

03. Download Survey Files

DXF, GeoTIFF, LAZ, and KMZ ready in minutes — on NAD83 State Plane with NAVD88 US survey foot elevations, exactly as a field survey would deliver.

04. Locate Utilities Virtually

Use Street View Forward Intersection to pin manholes, hydrants, valves, and poles from multiple angles and years — sub-foot accuracy without leaving the office.

Who Uses Topo-Plot

Land Surveyors

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.

Civil Engineers

Start grading and drainage design with survey-grade ground elevations before a field survey is ordered. Locate utilities precisely from Street View to flag conflicts early and reduce RFIs.

Developers & Owners

Understand the land clearly — terrain relief, tree canopy, slope, and parcel boundaries — with outputs that open in Google Earth, no technical software required.

GIS & Public Works

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.