Instructions provided describe how to create a custom Geographic (datum) transformation between NAD 1983 and Minnesota County Coordinate Systems based on the Lambert conformal conic projection. The table of county values is found on pages 6, 7 and 8. Make a note of the scale factor parameter for the county of interest from the right hand column in the table. Jack and Laura Dangermond founded Esri in 1969 as a small research group focused on land-use planning. The company's early mission was to organize and analyze geographic information to help land planners and land resource managers make well-informed environmental decisions. Esri inspires and enables people to positively impact their future through a deeper, geographic understanding of the changing world around them. Esri has cultivated collaborative relationships with partners who share our commitment to solving Earth’s most pressing challenges with geographic expertise and rational resolve. Esri pursues mapping and spatial analysis for understanding our world with visionary products and services that define the science of GIS. ArcGIS is a complete system for designing and managing solutions through the application of geographic knowledge. Esri helps you build and manage great information products by providing the ultimate platform for geospatial integration and application. Creative Map Solutions has over 15 years of experience in Esri GIS software solutions. Source.