Take I-80 north toward Sacramento. Turn right onto Highway 12 at Fairfield to Rio Vista. Go over Rio Vista Bridge. Turn left onto Highway 160. Take Highway 160 through Isleton. On the outskirts of Isleton, follow Highway 160 across the river and continue north on the west side of the river. At Ryde (approximately 8 miles), turn left onto County Road 220, follow along 3 miles to the dead-end at the river. Turn right onto Grand Island Road, the Mansion is 3 miles along.  Hide these directions
 

I-5 South
Exit Freeport
Turn left on Pocket Road
Turn right on Freeport Blvd.
Cross the Freeport bridge (right)
Turn left (towards Clarksburg)
Drive 14 miles to Grand Island Road
(Cross bridge) turn right....Grand Island Mansion 3.5 miles.  Hide these directions
 

I-5 South
Exit Twin Cities Road, turn right
River Road turn left towards Walnut Grove
Cross the Walnut Grove Bridge (turn right)
Turn right at on Highway 160
5 miles, turn left on Grand Island Road (Don't cross the yellow bridge)
Take Grand Island Road 3.5 miles   Hide these directions
 

Travel I-5 north, exiting at the Walnut Grove/Thornton Rd. exit. Turn left, traveling west several miles into the town of Walnut Grove. At the stop sign, turn left onto the bridge, after crossing bridge turn right onto Highway 160 going north on the west side of the river approx. 5 miles. Just before the Steamboat Landing bridge, turn left onto Grand Island Road, the Mansion is 3 miles along.  Hide these directions
 

Travel east on Highway 12 through Rio Vista and across the Rio Vista Bridge. Turn left at signal onto Highway 160. Continue on Highway 160 along the river through Isleton. On the outskirts of Isleton, follow HWY 160 across the river and continue north on the west side of the river. At Ryde (approx. 8 miles) turn left onto County Road 220, follow along 3 miles to the dead-end at the river. Turn right onto Grand Island Road, the Mansion is 3 miles along.  Hide these directions
 

Travel Highway 4 to the Antioch toll bridge, crossing the river and the road becomes Highway 160. Travel Highway 160 several miles to traffic light at Highway 12. Continue straight on Highway 160 along the river through Isleton. On the outskirts of Isleton, follow Highway 160 across the river and continue north on the west side of the river. At Ryde (approx. 8 miles) turn left onto County Road 220, follow along 3 miles to the dead-end at the river. Turn right onto Grand Island Road, the Mansion is 3 miles along.  Hide these directions