Washington Township covers a broad rural and suburban area in western Morris County, with Long Valley serving as its best-known community center. The township lies among the hills, farms, forests, and river valleys of the Highlands region. Schooley’s Mountain rises through the municipality, while the South Branch of the Raritan River and several smaller waterways shape the landscape below. Routes 24 and 513 provide important local connections, and U.S. Route 46 is accessible along the northern part of the township. Residential neighborhoods, farms, schools, parks, historic villages, and preserved open land are spread across a large geographic area. The Columbia Trail passes through Long Valley and follows a former railroad corridor used for walking, cycling, and recreation. Washington Township borders Chester Township, Mount Olive, Roxbury, Mendham Township, and several Hunterdon and Warren County communities. Its combination of historic settlements, mountain scenery, agricultural land, and commuter access gives the township a distinctive western Morris County character.