The Prairie Blood coulee winds through a property on the Kainai Nation, also known as the Blood Tribe, in southern Alberta. On a warm fall day, about a dozen people haul willows, mulch, dirt and water to several spots along a dry creek bed. Some pound large posts into the ground. Technicians from Blood Tribe and volunteers from local environmental groups are building five beaver dam analogs, which mimic a natural logjam. They hope to restore the stream flow to help the landowner care for his animals and have more water for wildlife as the area experiences a decade-long drought.

The Milk River looks great right now, according to farmer Elise Walker. It's high, it's flowing and it's fairly clean. For now, she and about 30 to 40 other families in southern Alberta can continue using the water to irrigate their farms, helping to get them through a very dry spring. In fact, Walker already started to irrigate her 607 hectares (1,500 acres) of land at the end of March — the earliest ever.