Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Mount Morris is a village located in the Town of Mount Morris in Livingston County, New York, USA. The population was 3,266 at the 2000 census. The village and town are named after Robert Morris. The Village of Mount Morris is at the northeastern entrance to Letchworth State Park, which contains a scenic gorge and triple waterfall on the Genesee River. The village is in the northern part of the Town of Mt. Morris.