In 2000, a Historical Resources Impact Assessment and Mitigative Archaeological Excavations were undertaken at the Cougar Ridge Off-Site Sewer Servicing Project located on the East Paskapoo Slopes south of the Bow River in the City of Calgary. This HRIA located and evaluated eight Precontact sites on the slopes. Mitigative excavations were carried out on four of these sites (EgPn-343, EgPn-589, EgPn-362, and EgPn-506) that could not be avoided. EgPn-343, 589, and 506 are campsites and EgPn-362 is a bison pound.