The mission of Penn State Extension is to bring the scientific and practical expertise of PSU researchers and faculty throughout the Commonwealth. But even with offices in every county, extension staff can\u2019t be everywhere at once. That\u2019s where master volunteers come in. \n\nPSU Extension's Master Gardener program is familiar to many, but did you know you can also train to become a Master Watershed Steward? We talk with program coordinator Erin Frederick.