By Ashley Joannou and Nono Shen The stretch of semi-rural land on No. 6 Road in Richmond, B.C., is home to blueberry farms, multimillion-dollar mansions and an 18-hole golf course. Those properties are all now encompassed by a landmark Aboriginal title claim that was successfully established by the Cowichan Nation last week. The ruling in B.C. Supreme Court confirmed Cowichan Aboriginal title and fishing rights over the stretch of land on Lulu Island next to the south arm of the Fraser River where the nation had a summer village where members fished for salmon. Now it is occupied by Crown and City of Richmond holdings — as well as private properties that include a 10,600 square-foot home with 11 bathrooms and an official valuation of $7.78 million, other multimillion-dollar homes…