If happy cows live in California, then exploding cows live in Colorado!
It’s just a matter of how much it will cost, and how long the area will have to be closed. It is very remote and inaccessible, but it is a ‘valuable” recreational trail.
Bottom line is, the cheapest and quickest way to open the trail is to turn the cows into very small bits, and let nature remove them. A few guys, a few hundred pounds of dynamite, and a few days, done, efficiently.
BTW, the whale dispersal was botched.