Henderson Lake CampgroundState: City: LETHBRIDGEPhone: 403-328-5452Open: Open all yearNumber of Sites: 99 From jct Hwy 4 and Hwy 5 (Mayor Magrath Dr): Go 2.4 km/1 1/2 mi N on Hwy 5, then 1 km/8/10 mi E on 7th Ave. S. Entrance at end.