Driving South on I-5:
Take Exit 14 off I-5 and turn left over the freeway. This will put you on Hwy 66 (or the Green Springs Hwy) heading east away from town.
Go about 4 miles and with Emigrant Lake on your left, watch for the sign for "Old Siskiyou Hwy". Turn right onto this road, also marked Old Hwy 99 South and route 273. Go 1/2 mile and turn right into the driveway for the big yellow farmhouse.