Knucklehead: Always be careful when picking morels in residential, urban areas, Right-Of-Ways (power lines, pipelines etc) and near roads. Morels are good absorbers of heavy metals and potentially harmful chemicals within pesticides, herbicides and fertilizers. If the lawn was lush, homogeneous and green, I'd discard these because the lawn must have been sprayed with herbicides and fertilizers. Most folks actually prep their lawns with chemicals in early Spring. As we say: If found in the woods - you are good. My 2 cents & happy foraging-