Advanced Technology for Modern Agriculture
Comprehensive solutions for management zone creation, farm drainage design and planning, elevation data, weather planning, mapping tools, and professional training. Built by leading precision ag and technology experts.
Geo-Surface PowerZoner™
The most advanced satellite-based management zone tool available today. You have full control—analyze multi-year crop performance patterns using NDVI data from Copernicus Sentinel-2, combined with optional topography refinement to create precise, actionable management zones.
Geo-Surface PowerZoner Advanced Features
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Multi-Year Satellite NDVI Analysis
Access Sentinel-2 satellite data from 2015-present to identify consistent crop performance patterns across multiple growing seasons.
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Peak NDVI Per Pixel
Unique feature that captures maximum crop vigor during the growing season for each pixel, revealing true productivity potential.
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Topography-Based Refinement
Optionally split low-productivity zones by wetness potential to identify moisture-limited areas—combining satellite and terrain intelligence.
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Export-Ready Zone Files
Download shapefiles with CPI (Crop Productivity Index) values ready for variable rate applications in your equipment.
Ready to Create Precision Management Zones?
PowerZoner™ is available exclusively through GIS4Ag. Explore the full platform, watch demo videos, and start creating zones today.
TerraZoner™
Create topography-based management zones using terrain intelligence. TerraZoner analyzes Topographic Position Index (TPI) and Wetness Potential to delineate zones based on elevation, slope, and water accumulation patterns—perfect for variable rate seeding where different plant populations are targeted based on topography and water status.
Geo-Surface TerraZoner™ Advanced Features
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TPI & Wetness Potential Analysis
TerraZoner uses Topographic Position Index (TPI) and Wetness Potential to identify topographic features—ridges, valleys, slopes, and water accumulation zones—and delineate your fields into management zones based on topography and wetness potential.
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Create Variable Rate Management Zones
Build management zones based on terrain characteristics. A great fit for variable rate seeding—you're the expert on your fields, we just provide the tools.
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Export-Ready Zone Files
Download shapefiles ready for variable rate applications in your equipment, with zone attributes clearly defined.
Ready to Create Topography-Based Zones?
TerraZoner™ is available exclusively through GIS4Ag. Perfect for variable rate seeding and topography-driven management.
⚡ LiDAR-Powered Farm Mapping
Drain-IQ
Get your entire farm elevation & drainage mapped — plus simple tools to check elevations, slopes, and plan drainage improvements. If your farm is covered by public LiDAR, we can provide this service with custom processing and portal development for your complete operation.
Get Your Entire Farm Mapped
No per-acre fees. No hidden costs. Professional data processing & custom portal development included.
Complete Coverage
Every field. Every acre. One comprehensive map.
Custom Processing
Professional data processing & bespoke portal built for you.
Access Anywhere
Phone, tablet, or computer. No software required.
What You Get
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Flow Path Mapping
See exactly how water moves across your land. Adjust sensitivity to highlight the most important drainage routes.
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Elevation Analysis
Click anywhere to check elevations instantly. High accuracy, high resolution LiDAR mapping.
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Ponding & Depression Detection
See exactly where water collects—even in a dry fall. Target problem areas with precision.
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Design & Export Tools
Plan drainage routes, create unlimited PDF maps, download raw LiDAR data, and share with anyone.
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Always Updated
New LiDAR data released? We rebuild your maps automatically—no extra fees (multi-year plans).
Ready to Map Your Farm?
Check coverage, explore the demo, and get started with professional drainage intelligence for your entire operation.
🚜 Professional Drainage Design
Geo-Surface Drain Pro
A complete professional platform for designing surface and subsurface drainage systems from LiDAR. Built for people who need accurate, efficient, and repeatable designs without expensive desktop software. Try it free at geo-surface.com — explore high-resolution LiDAR terrain and check elevations instantly. Upgrade to Pro when you're ready to design complete surface and tile drainage systems.
Professional Drainage Design Tools
Full-featured drainage design platform. No expensive desktop software required.
Browser-Based
Works anywhere. No installation required.
Fast & Accurate
LiDAR-based analysis in seconds.
Complete Toolkit
Everything from analysis to export.
Complete Design Platform
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Automatic LiDAR Download
Download high-resolution elevation data automatically where available, or import your own DEMs.
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Advanced Terrain Analysis
Generate flow paths, depressions, ponding areas, and wetness potential layers in seconds.
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Design & Optimization
Draw, connect, and optimize mains, submains, and laterals with automated validation.
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Best-Fit Grade Analysis
Maintain slope accuracy and minimize cut/fill with intelligent grade optimization.
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Export Everything
Download GIS shapefiles, PDF maps, detailed reports, and cost summaries — perfect for planning and contractor coordination.
Ready to Design Professional Drainage Systems?
Explore the free viewer, check elevations, and see what Pro can do for your drainage designs.
LiDAR Extractor
Get high-resolution elevation data without the complexity. Whether you're designing drainage for a single field, planning land leveling across a farm, or analyzing terrain for an entire watershed — extract exactly what you need in minutes, not hours. No expensive desktop GIS required.
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Select & Define
Choose US (3DEP) or Canada (HRDEM), then draw your boundary or upload a shapefile — from single fields to entire regions.
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Choose Resolution
1m for precision drainage work, up to 500m for regional analysis. Intelligent resampling keeps file sizes manageable.
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Preview in 3D
Explore hillshade and elevation overlays. Verify coverage and quality before downloading.
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Export Your Way
GeoTIFF, Shapefile, CSV, KML, ASCII Grid, Surfer GRD, or AGS — in meters or feet, UTM auto-detected.
Survey-Grade LiDAR Data in Minutes
Drainage design, land leveling, terrain analysis, watershed planning — get the elevation data you need without fighting complex software.
Tools & Data
Custom-built tools and premium data layers designed for agricultural professionals. From quarter section navigation to detailed soil mapping and LiDAR processing—everything you need in one place.
Google Earth Overlays
Find Land Boundaries Instantly in Google Earth!
Ready-to-use KMZ files that add accurate quarter section boundaries directly onto Google Earth for Manitoba, Saskatchewan, and Alberta. Download, double-click, and start exploring land boundaries in seconds.
- Instant Setup - Works immediately in Google Earth
- Complete Coverage - All RMs/counties plus Manitoba River Lots
- Built-in Tools - Measure and analyze using Google Earth Pro
Prairie Quarter Locators
Find any quarter section in MB SK AB
Quickly lookup any quarter section on the Canadian Prairies using any device—no app needed. Navigate to legal land locations with Google Maps and geolocate your position to see which quarter section you're on.
- Instant Lookup - Find any quarter section by legal land location
- Google Maps Navigation - Direct routing to quarter sections
- GPS Geolocation - See your current quarter section position
Manitoba Soil Mapper
Unlimited Access to Manitoba's Most Advanced Soil Mapping!
Exclusive access to Manitoba's most detailed interactive soils map portal for farmers, crop consultants, investors, and assessors. Includes Soils 101 lessons with knowledge checks to learn soil science fundamentals.
- Detailed Soil Data - Interactive portal with comprehensive soil mapping
- Soils 101 Course - Educational lessons with knowledge checks
- Smart Decisions - Insights for land buying, crop planning, and valuations
GIS Data
Premium Agricultural Data Layers
Premium agricultural and geospatial data layers designed for precision farming, land management, and agricultural analysis. Access curated datasets ready for immediate use in your GIS software.
- Premium Datasets - Curated agricultural data layers
- Ready to Use - Compatible with standard GIS software
- Professional Quality - Accurate, up-to-date information
Online Courses
Practical, hands-on courses taught by industry experts. Learn precision agriculture techniques, drainage design principles, and advanced GIS workflows at your own pace.
Management Zones & VR Prescriptions
Using Free Satellite Data and QGIS Software
Learn to create professional multi-year management zones and variable rate prescriptions using free satellite data and open-source QGIS. Complete this practical course in under a day and gain the skills to create unlimited custom zones for your fields.
- Complete in One Day - Fast-paced, practical instruction
- Free Tools - Learn QGIS and access free satellite data
- Unlimited Fields - Apply your skills to any number of fields
Tile Drainage Design Principles
Professional Drainage System Design
Comprehensive training on tile drainage design principles for agricultural applications. Learn proven methods for designing effective subsurface drainage systems that improve field productivity and profitability.
- Design Fundamentals - Core principles of tile drainage systems
- Practical Methods - Real-world design techniques and workflows
- Professional Skills - Industry-standard drainage design practices
Precision Agriculture Made Practical
Making geospatial data and precision agriculture tools accessible, actionable, and effective for farmers, agronomists, consultants, and ag tech professionals since 2008.
Meet Simon Knutson
Founder & Lead Developer
For nearly two decades, I've been at the forefront of precision agriculture, GIS, and ag tech innovation. Since founding GIS4Ag in 2008 and co-founding Northern Plains Drainage Systems in 2012, I've developed industry-leading tools like Ditch Assist™, spent 4 years teaching precision agriculture and agriculture technology at Olds College, consulted on and led product and service development initiatives for diverse organizations across the ag tech and precision agriculture sectors, and helped farmers, municipalities, and businesses make smarter, data-driven decisions.
Haven't heard of me before? That's fine! Unlike many in this space, I focus on practical, results-oriented solutions—not hype or self-promotion. My work speaks through the tools farmers use daily, the students who've built successful careers in precision ag, and the real-world problems we solve together.
Whether you're looking for professional mapping tools (PowerZoner, Drain-IQ, Geo-Surface Pro), hands-on training (QGIS courses, precision ag fundamentals), or ready-to-use data products (Google Earth overlays, LiDAR processing)—GIS4Ag provides the platform, expertise, and support to help you work smarter and achieve better outcomes.