Contour Clips
For firms without a GIS team

Washington site data, ready for CAD in about 15 minutes.

Parcels, NAIP aerials, and the newest LiDAR that covers your whole site, from the WA DNR portal or USGS 3DEP, plus the constraints a site plan starts with: DNR water-typed streams, NWI wetlands, FEMA flood zones, USDA NRCS soils with hydric ratings, and slope. Clipped to your boundary, projected to WA State Plane, with DXF and DWG included.

WA State Plane DNR + 3DEP LiDAR DXF + DWG included Civil 3D ready ~15 min delivery
Who it's for

Your team has better things to do than download LiDAR tiles.

Contour Clips was built for small and mid-sized survey, engineering, and environmental consulting firms that don't have a dedicated GIS team.

At a large firm, a GIS department pulls the base data for a new project. At a smaller one, it's our experience that it lands on whoever can spare an afternoon: usually a project engineer, a survey tech, or a staff scientist, and sometimes the principal. The work isn't hard, exactly. It's slow, it's easy to get subtly wrong, and it takes that person away from the survey, the design, or the report.

That's the part we do. We pull the same public data, clip it to your boundary, check it, and deliver it ready for CAD. Your team gets the afternoon back.

Keeping that data current is a job of its own. New LiDAR gets flown, NAIP imagery is updated every two to four years, and parcel and flood maps get revised. We keep up with the sources so your team doesn't have to: each order is built from them when you place it, new LiDAR and imagery years appear on the order page as agencies publish them, and the summary sheet dates every layer.

Contour Clips started inside a Washington environmental consulting practice, pulling this same data for engineering and survey clients.

Base data, by hand
  1. Find which portal has LiDAR for the site
  2. Check that it covers the whole boundary
  3. Download the tiles and stitch them together
  4. Reproject to State Plane; meters to US survey feet
  5. Clip parcels, aerials, wetlands, flood zones, soils
  6. Run contours; export DXF, DWG, and LandXML
  7. Write down every source and its date
→ Contour Clips does the whole list in about 15 minutes.
How it works

Four steps. No emails back and forth, no waiting on a quote.

01

Draw your boundary

Search an address, then draw the site: a rectangle in two clicks, or trace it as a polygon. Acreage computes as you draw.

↳ on-screen map
02

Pick your layers

Parcels, aerial (NAIP), LiDAR DEM and contours, wetlands, flood zones, soils, streams, LandXML – check what you need.

↳ priced live
03

Pay

Card checkout through Stripe. Flat prices shown up front; WA sales tax is added at checkout.

↳ secure / Stripe
04

Delivered

A CAD-ready zip and a two-page summary land in your inbox – typically inside 15 minutes.

↳ download link
Data layers

The layers a site plan starts with – clipped, projected, and named for CAD.

Vector

Parcels

Washington's statewide parcel layer, compiled from county data, clipped to your site with attributes.

Terrain

LiDAR DEM + Contours

Bare-earth LiDAR from WA DNR or USGS 3DEP, the newest collection covering your whole site, and contours at any interval from 1 ft.

Imagery

Aerial (NAIP)

USDA NAIP aerial imagery (60 cm since 2019), projected to your CRS. Pick older years for change detection.

Surface

LandXML

Existing-ground surface ready to import into Civil 3D.

Environmental

Wetlands (NWI)

USFWS National Wetlands Inventory polygons, clipped.

Environmental

Flood zones

FEMA flood hazard zones (NFHL) clipped to your site, with base flood elevations where mapped. The summary sheet says which FEMA copy you got.

Environmental

Soils (SSURGO)

NRCS soils with hydric percentage for early screening.

Hydro

Streams

WA DNR water-typed streams and watercourses.

Terrain

Slope + hillshade

A slope raster from the LiDAR DEM, in percent or degrees, and a shaded-relief hillshade.

Output

DXF + DWG

DXF and DWG copies of every vector layer, next to the shapefiles. Included with every order.

What lands in your inbox

A zipped folder with files you can load straight into a drawing.

Sample site - GIS Clips.zip Parcels/Parcels_Clp.shp
Air_Photo/NAIP_2023_Clp.tif
LiDAR/DEM_2017_Clp.tif
LiDAR/Surface_Existing.xml
Contours/Contours_5ft.shp
Wetlands/Wetlands_NWI_Clp.shp
Slope/Slope_Pct_Clp.tif
Hillshade/Hillshade_Clp.tif
+ .dxf and .dwg next to every .shp
+ Sample site - GIS Clips - Summary.pdf

CAD-ready, and checked before it ships.

Every job runs through an automated QA check before you ever see it.

  • Projected to your CRS - verified, with bounds covering your boundary
  • A two-page plan-sheet summary: map, layer thumbnails, sources and dates, datums, credits
  • If a paid layer can't be built, the job is held and a person reviews it within one business day

This is a real package for a 17.6-acre site in Snohomish County, built by the same engine that fills orders. Open it in your own software:

Pricing

Flat, transparent, and shown to you before you pay.

From $45

Order parcels, aerial imagery, or a LiDAR DEM on their own ($45 each), or take all three as the Site Basemap bundle ($100, save $35). Add contours to the DEM at any interval from 1 ft ($30 for one interval, +$5 for each extra interval). DXF and DWG are included, sites up to 200 acres carry no area fee, and WA sales tax is added at checkout. Typical site packages run $100–$250.

Get a price →
Questions surveyors ask

Before you trust us with your basemap.

Is this survey-grade? Can I stamp it?

No – and we won't pretend otherwise. A clip is public source data, clipped to your boundary and reprojected: built for basemaps, design backdrops, feasibility, and constraints screening. It isn't a field survey or a stamped boundary determination.

Which CRS and datum do I get?

Whatever you specify: EPSG:2926 (North) and 2927 (South), in any NAD83 realization, or UTM. The order page suggests the zone for your site's county. Elevations are NAVD88 in US survey feet, and both datums are printed on the summary sheet.

Is it really CAD-ready?

Yes – DXF and DWG copies of every vector layer come with every order, plus an optional LandXML existing-ground surface, named the way you'd draw them by hand.

Where does the data come from?

Public county, state, and federal services: WA DNR and USGS LiDAR, USFWS, FEMA, NRCS, and NAIP - only sources licensed for redistribution in your deliverables.

What if a layer fails?

The order is held and a person reviews it within one business day. A package missing a paid-for layer never ships – if we can't build it, you're refunded.

Read the full FAQ →