Justin Thompson and Matt Kumlin walk up a hill toward a ridge in the Alberta foothills as a border collie and “cow-dog-in-training” named Newt tags along. At the top of the ridge, the snow-capped Rocky Mountains are visible to the west. Calgary’s downtown is about 40 kilometres to the east. More than six square kilometres of the property around them has been protected by the Kumlin family with a conservation easement, which restricts land uses that could damage its ecological health.