The Conservation Assessment and Prioritization System (CAPS) is an ecosystem-based approach developed by UMass-Amherst for assessing the ecological integrity of lands and waters. Data on over 40 indicators were combined to calculate the CAPS Index of Ecological Integrity at each 30-meter grid point state-wide. Indicators particularly relevant to watershed health are estimates of habitat loss, total impervious and % impervious surface adjacent to wetlands, road traffic, dams, habitat connectedness, aquatic habitat connectivity, flow gradient and volume, and development.