New York State 1:250,000 scale maps are in the Eastern United States 1:250,000 series, one of a number of map series produced by the U.S. Government. These can be identified in BISON by title and are shelved in the Map Room under SuDoc number. The Map Collection has maps in this series for a number of states, and this series is part of a world wide series of maps of the same scale. Below is an index showing the maps for New York.

For example the title: Buffalo is located under: US I 19.110: 42078-A 1-TF-250/