Coming from I-81, take exit 141, turning left at end of ramp (at light) onto Rt 419. Continue south on Rt 419. After crossing Keagy Rd (Lewis Gale Medical Center is on the left), continue on Rt 419 another 9/10 mile to the second Keagy Rd. Turn left onto Keagy, then right on McVitty.
Be alert to the fact that there are two Keagy Rds and several McVitty Rds which intersect Rt 419.