The Trust for Public Land, a national land conservation organization and CCLT member, released a study in 2010 reporting that every $1 spent in Colorado protecting family farms and ranches by limiting development generates $6 in economic benefits for the state. The study, available here, was done by Jessica Sargent-Michaud, a staff economist with TPL. She analyzed the return generated by Colorado's investment in easements from 1995 to 2009.
This study was updated in 2014 by Erik Glenn, Executive Director of Colorado Cattlemen's Agricultural Land Trust and CCLT board member. By incorporating an additional five years of conservation successes into the dataset, he concludes Colorado receives $8 of economic benefit for every $1 of foregone revenue from conservation easement tax credits. Read the report here.