winter weather: water
Snow is a good source of livestock water provided it is clean, fresh, and soft enough to eat. When our snow cover turned to ice last week we stopped moving fence for the time being and began feeding square bales broken up on the pasture (otherwise known as bale grazing). No more clean, accessible snow. Now the herd has temporary access to one of our spring fed tire tanks, and even when the temperatures drop below zero, the water keeps running. And since the ground is frozen, soil compaction around the tank is minimized, a fact we'll be grateful for in the spring.
Below the frozen surface, the soil is still somewhere in the neighborhood of 50 degrees fahrenheit, so even once it reaches the tank it's comparatively warm. This tank feeds into a second tank further down the hill:
Even here, the water is disinclined to freeze.