Project Footprint (PF)

The Project Footprint ("PF") is the legal area of the mine. Use a map of the mine plan for your reference, or estimate.

Project Impact Footprint (PIF)

All mining activities affect the land and water beyond legal boundaries. To account for the “Project Impact Footprint “(“PIF”) we chose an area 4-times greater than the mine’s property or Project Footprint (“PF”). These areas may not feel the direct effect of excavations or tailings storage, but the peripheral area endures seepage, dust, noise, and general disturbance to the natural area that would not exist but for the presence of the mine or mining activity. You may also multiply your PF by 4, or use another Project Footprint factor more indicative of your mine's impact.