North of Ramapo Avenue , Route 17 features an interchange with U.S. Route 202 and crosses the Ramapo River .
In Mahwah , Route 17 interchanges with County Route 85 ( Island Road ) and County Route 100 ( Ramapo Avenue ) .
North of Ramapo Avenue , Route 17 features an interchange with U.S. Route 202 and crosses the Ramapo River .
In Mahwah , Route 17 interchanges with County Route 85 ( Island Road ) and County Route 100 ( Ramapo Avenue ) .