New York State Route 9B (NY 9B) is a state highway located within Clinton County, New York, in the United States. The route serves as a connector between its parent route, U.S. Route 9 (US 9), in the town of Champlain and US 11 in the village of Rouses Point. While US 9 bypasses Rouses Point to the west, NY 9B veers east to serve the village and the shoreline of Lake Champlain. NY 9B is the northernmost section of the Lakes to Locks Passage, an All-American Road. Modern NY 9B was the original alignment of US 9 through the town of Champlain. US 9 was moved onto its present alignment west of Rouses Point in the mid-1940s, at which time its former routing to Rouses Point became NY 9B. Route description NY 9B begins at an isolated intersection with US 9 in the town of Champlain. The route initially heads to the northeast, crossing farmland and passing small patches of wooded areas. At Coopersville, the first named location along NY 9B, the highway crosses the Great Chazy River and turns to follow a more easterly routing toward Lake Champlain. NY 9B reaches the shoreline later, at which point the route makes a sharp turn to the north to follow the western edge of Lake Champlain. It serves a handful of lakeside homes before passing Point au Fer, a peninsula protruding southeastward into the lake. Along this stretch, NY 9B traverses mostly undeveloped areas located inland from the lake. North of Point au Fer, the route returns to the lake shore as it enters the village of Rouses Point, the second and final location along NY 9B's routing. The surroundings change immediately across the village line as the route, now named Lake Street, serves several residential streets that mark the southern fringe of Rouses Point. After two long blocks, the lakeside homes gradually begin to give way to commercial establishments as NY 9B approaches Champlain Street, an east–west street carrying US 11 into the village. NY 9B ends at Champlain Street while US 11 turns north to follow Lake Street toward Rouses Point's central business district and the Canadian border. The portion of NY 9B from Lake Shore Road—a county road that meets NY 9B in Coopersville—north to its end at US 11 in Rouses Point is the northernmost leg of the Lakes to Locks Passage, an All-American Road that