We have a ravine on our property. We use the electric netting, and it's pretty easy to maneuver in those conditions.our yard drops off pretty steeply at the tree line, so most of our acreage is hilly woods and the wetlands. so fencing in goats would be an absolute nightmare.
Here's a pic of them at the top of the ravine. I don't have great pics of them in the actual ravine, though. Hilly terrain is ideal for goats because they love climbing.
We call the ravine the Sarlaac Pit.