A friend got his two dogs up this:
while they were totally leashed:
His main worry is that the Brittany will just take off, as she is wont to do. If she sniffs a cottontail or grouse, she takes off like a bullet. That area is pretty hostile -- little sure water, and coyotes and mountain lions throughout.
He has used a shock collar with some success, but it's usually a lot easier just to leash her anyplace where she can escape quickly. Sometimes it takes hours of calling to get her back.