I met with Lauren Lambertson at the Bureau of Land Management in Rawlins, Wyoming. The Rawlins Field Office manages 4.2 million acres. Ms. Lambertson said a good percentage of the Federal land in this area is leased to local farmers for grazing their cattle. Cows, for instance, are allowed on a plot of land for so many days a month. However, complications have arisen. Some parcels are overgrazed. It’s hard to police the vast amount of land, said Ms. Lambertson. And with the overgrazing comes soil erosion and other eco-system damaging problems.