New York State Route 17B
Map of Sullivan County in southern New York with NY 17B highlighted in red  | ||||
| Route information | ||||
| Auxiliary route of NY 17 | ||||
| Maintained by NYSDOT and Sullivan County | ||||
| Length | 21.90 mi (35.24 km) | |||
| Existed | 1930–present | |||
| Major junctions | ||||
| West end | NY 97 in Callicoon | |||
| East end | Future I-86 / NY 17 in Monticello | |||
| Location | ||||
| Country | United States | |||
| State | New York | |||
| Counties | Sullivan | |||
| Highway system | ||||
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New York State Route 17B (NY 17B) is a state highway located entirely within Sullivan County, New York, in the United States. It connects the hamlet of Callicoon at its western end with the Monticello area in the east, ending at a junction with NY 17's exit 104, just northeast of Monticello.