Question: What town has a  24.8 mi tributary of Schoharie Creek in Schoharie and Albany counties in the U.S. state of New York, and was named after governor Silas Wright?
Sentence (from "Schoharie Reservoir"): Portions of it lie in the towns of Conesville and Gilboa in Schoharie County, Roxbury in Delaware County, and Prattsville in Greene County.
Relevant evidence: No