Solutions
Drainage Contractors
Design and quote drainage and landforming jobs from LiDAR — no per-acre fees.
Ag Consultants
Turn client fields into buildable drainage and landforming plans from LiDAR.
Farmers & Landowners
Design your own surface, tile, and landforming — no per-acre fees on any of it.
Features
Pricing
Live Demo
Free Tools
Explore & plan
Free Viewer
View LiDAR terrain in 3D or open a plan someone shared with you.
Check LiDAR Coverage
Confirm US 3DEP or Canada HRDEM coverage before you plan.
Free calculators
Tile Calculator
Spacing, footage, pipe sizing, and ballpark cost.
Drainage ROI Calculator
See payback years and projected 10-year return.
Flow & Capacity
Compare pipe capacity with the flow from your acres.
Grade & Fall
Convert grade units and check minimum-grade rules.
Learn
User Manual
Every design tool, export, and project workflow in Geo-Surface Pro, step by step.
About GIS4AG
Why Geo-Surface exists and how it fits with Ditch Assist.
Contact
Ask about fit, setup, training, or anything else before you subscribe.
Members
Open member tools
Geo-Surface Pro
Current
Open the current design app for your region.
US
Canada
Geo-Surface Pro 2.4.2
Fallback
Previous release, available if you encounter an issue in the current app.
US
Canada
LiDAR Extractor
Download field elevation as a GeoTIFF.
US
Canada
Account & help
Member Login
Sign in to your membership.
My Account
Billing, subscription, password, and profile.
Member Support
Help with setup, projects, or membership.
Get Pro — US$499/yr
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