Marin Agricultural Land Trust · Est. 1980
In 1980, a handful of visionaries in Marin County did something no one had done before — they created the first agricultural land trust in the United States. 45 years and 58,768 acres later, their work proved that conservation and farming can live side by side. We believe their thinking deserves to go further. For the first time, we can measure the true value of what they protected — because what cannot be measured cannot be valued, and what is invisible cannot be protected.
Yearly Ecosystem Services Value · $6,960/ha · $2,817/acre · 9-Pipeline v4.0
The Foundation
Founded in 1980, the Marin Agricultural Land Trust was the first organization in America to permanently protect farmland through conservation easements. Just as they redefined what a land trust could be, we want to evolve their work to the next level.
Permanently protecting 58,768 acres across West Marin County. 254 miles of creeks and streams. 647 acres of wetlands. 13,079 acres of forested habitat. 34,155 acres of grassland and rangeland.
Pioneering carbon farming research through the Marin Carbon Project and UC Berkeley Silver Lab. A single compost application sequesters approximately 1 tonne of carbon per hectare — and the effects persist for 30 to 100 years.
Direct investment in the land and the people who care for it. Connected to the Marin Carbon Project, Carbon Cycle Institute, American Carbon Registry, and UC Berkeley.
The Engine
We built a 9-pipeline Ecosystem Services Valuation engine grounded in peer-reviewed science and ran it across every acre MALT has protected. 57,840 grid cells at 64-meter resolution. 12 months of Sentinel-2 satellite imagery with Maximum Value Compositing. Real CDEC rain gauge precipitation. USDA SSURGO soil data (hydrologic group, erodibility, slope). Stanford-style InVEST models for nutrient and flood retention. 694,080 individual measurements. Real data, not estimates.
Per Year in Ecosystem Services · 9 Pipelines · 12-Month Average
Wischmeier & Smith: R×K×LS×C×P. SSURGO slope + soil erodibility on Marin's steep coastal hills. (54%)
Evapotranspiration, albedo regulation, microclimate stability. $1,171/ha/yr (18%)
Air quality, mental health benefits, recreational and aesthetic value. (7%)
Budyko-Zhang water yield across 254 miles of creeks. NDVI-driven ET partitioning. (7%)
Habitat provision, species refugia, genetic diversity across 13,079 acres of forest. (6%)
Native pollinator habitat supporting West Marin agriculture and wild plant reproduction. (3%)
Soil organic carbon + biomass, valued at EPA's $190/tonne social cost of carbon. (3%)
SCS Curve Number (USDA TR-55) with SSURGO hydrologic soil groups. Seasonal: $0 in summer, $8.9M in November. (2%)
Simplified InVEST NDR: N&P load × retention × treatment cost avoided. (<1%)
The Formula
ESV = Σ (Carbon + Water + Cooling + Soil + Biodiversity + Pollination + Health + Nutrient + Flood) × 0.4096 ha/cell
Each pipeline outputs $/ha/yr from peer-reviewed formulas. The USLE erosion module uses Wischmeier & Smith (1978) with SSURGO representative slope (slope_r) for the LS-factor. The flood pipeline uses the SCS Curve Number method (USDA TR-55) keyed to hydrologic soil group from SSURGO. The nutrient pipeline mirrors the Stanford Natural Capital Project's InVEST NDR model. Per-cell values are multiplied by cell area (0.4096 ha) before aggregation — never double-counted by area.
Data sources: Sentinel-2 L2A MVC NDVI (Copernicus, 12-month Jan–Dec 2025) · CDEC Point Reyes rain gauge · NLCD 2021 land cover · USDA SSURGO (hydrologic soil group, texture, AWC) · USDA SSURGO (slope_r, erodibility) · EPA SCC $190/tonne · ISRIC SoilGrids (SOC) · Multi-framework ESV: Costanza et al., Xie et al., de Groot et al. (TEEB), Marin Carbon Project, Stanford InVEST, Wischmeier & Smith (USLE), USDA TR-55 (SCS-CN). 64m resolution, 0.4096 ha/cell.
The Problem
The global economy has no mechanism to value living systems. A clean river has zero economic value. Pollute it, and GDP rises — cleanup crews, medical bills, lawsuits, remediation. An oil spill is an economic stimulus. Conservation land is instantly diminished because it does not produce transactions.
Eroding 100 to 1,000 times faster than nature can replace it. At current rates, roughly 60 harvests remain on Earth's farmlands.
Pollute it, and the economy surges. A functioning ecosystem is an economic non-event in a system that only counts transactions.
MALT's conservation lands generate $6,960/ha/yr ($2,817/acre/yr) across 9 pipelines — when you finally measure what matters.
MALT's lands have always provided this value. The economy simply had no way to see it. Until now.
The Vision
MALT proved that land can be permanently protected. We want to evolve that work — empowering it with a token economy that finally rewards the stewards who have protected, loved, and cared for this land for 45 years.
Every price in the economy is a lie of omission. The cost you see is never the cost you pay. Somewhere, an ecosystem is covering the difference. SoilScope makes that hidden cost visible.
The Mechanism
Layers of independent verification — satellite imagery, drone surveys, IoT soil sensors, laboratory analysis, AI computation, ground robotics, and human stewards on the ground. Convergent truth across all layers. The system cannot be gamed without physically regenerating the soil.
The Architecture
Every participant acting in self-interest produces a regenerative outcome. No altruism required. The architecture makes the right choice the obvious choice.
A land trust permanently removes the right to destroy. The right to use and benefit from the land remains. The land is protected forever — by law, not by goodwill.
The Proof of Soil oracle continuously verifies ecological health. SOIL tokens are minted when soil improves — backed by biological productivity, not monetary policy.
Stewards improve soil health because it increases their token value. The loop compounds: healthier soil, more value, more stewards, more land protected.
Honest Accounting
The dollar figure on this page is not a fact. It is an estimate — derived from satellite imagery, peer-reviewed formulas, and models we built ourselves. It is the best measurement we can make today, but it rests on satellite data streams and published coefficients, and any single stream can be wrong.
Clouds blind satellites. Algorithms carry assumptions. Models are approximations, never reality. We are transparent about this because scaffolding only works when you can see the structure — where it is strong, where it is incomplete, and where it needs reinforcement.
This is why we are building an oracle: not one data source, but multiple independent streams that must all agree before a value is recorded as truth. Satellite imagery. Drone surveys at centimeter resolution. IoT soil sensors. Laboratory analysis. AI computation. Ground robotics that walk the land, collect samples, and return data autonomously. Human stewards with local knowledge. When these streams converge on the same answer, we have something approaching reality. When they diverge, we investigate — not paper over.
The numbers on this page will change. The methodology will evolve. What will not change is the commitment to publish how we arrive at every value, to show our work, and to never claim more certainty than the data supports. The authenticity of the measurement is as sacred as the land itself.
Join the Movement
The land doesn't speak English or Russian or Chinese — not even Latin. It speaks in biodiversity, in soil carbon, in the measurable well-being of every living thing it sustains. We believe that if we measure that language, reward it, and tie an economic engine to it — the choice to regenerate becomes self-evident.
Forty-five years of conservation. Hundreds of millions in ecosystem value every year, measured honestly across 9 pipelines. A new economic model where the stewards of the land are finally rewarded for what they have always provided. This is the beginning.