Boulder Island is a island located in San Juan County, Washington. It appears on the Lopez Pass USGS 7.5-minute topographic quadrangle. The nearest populated place is Islandale, approximately 2.7 miles to the WNW.
San Juan County · Washington
Boulder Island is a island located in San Juan County, Washington. It appears on the Lopez Pass USGS 7.5-minute topographic quadrangle. The nearest populated place is Islandale, approximately 2.7 miles to the WNW.