The yield of bedrock wells in the fractured-bedrock aqui-fers of the Nashoba terrane and surrounding area, central and eastern Massachusetts, was investigated with analyses of exist-ing data. Reported well yield was compiled for 7,287 wells from Massachusetts Department of Environmental Protection and U.S. Geological Survey databases. Yield of these wells ranged from 0.04 to 625 gallons per minute. In a comparison with data from 103 supply wells, yield and specific capac-ity from aquifer tests were well correlated, indicating that reported well yield was a reasonable measure of aquifer char-acteristics in the study area.