Editing Dauphin, Pennsylvania (section)

==Geography==
Dauphin is located on the western edge of Dauphin County at {{coord|40.366687|-76.931168|type:city_region:US|format=dms|display=inline}},<ref name="GR1">{{cite web|url=https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html|publisher=[[United States Census Bureau]]|access-date=2011-04-23|date=2011-02-12|title=US Gazetteer files: 2010, 2000, and 1990}}</ref> on the east bank of the [[Susquehanna River]]. The land at the river's edge is [[alluvial]] [[floodplain]], but Dauphin sits at the head of a narrow valley between two mountains, at the mouth of [[Stony Creek (Susquehanna River)|Stony Creek]]. The valley between the two mountains is called Stony Valley, which contains the villages of [[Singersville, Pennsylvania|Singersville]] and Ellendale Forge. This section along the Susquehanna River is a gateway from the southeastern plains into the [[Appalachian Mountains]] and the north-central part of the state. [[Berrier Island]] is also located at Dauphin.<ref name="gnis">{{cite gnis  | id = 1169312  | name = Berrier Island  | access-date = 2018-01-06}}</ref>

Dauphin is surrounded by [[Middle Paxton Township, Dauphin County, Pennsylvania|Middle Paxton Township]], which comprises mountains and valleys south of the [[confluence]] of the Susquehanna and [[Juniata River|Juniata]] rivers. From south to north, the mountains in the township are [[Blue Mountain (Pennsylvania)|Blue Mountain]], Second Mountain, Third or Stony Mountain, and [[Peters Mountain (Pennsylvania)|Peters Mountain]]. The eastern ends of these valleys are generally undeveloped [[Pennsylvania State Game Lands|state game lands]] and protected [[drainage basin|watershed]].

U.S. Routes [[U.S. Route 22 in Pennsylvania|22]] and [[U.S. Route 322 in Pennsylvania|322]] pass through the borough as a four-lane expressway, close to the Susquehanna River, with full access from [[Pennsylvania Route 225]] at the west end of town and with westbound access from the east end of town. US 22/322 leads south {{convert|8|mi|0}} to the center of [[Harrisburg, Pennsylvania|Harrisburg]] and northwest {{Convert|7|mi|0}} to [[Duncannon, Pennsylvania|Duncannon]]. PA 225 leads north over Peters Mountain {{convert|9|mi|0}} to [[Halifax, Pennsylvania|Halifax]].

According to the [[United States Census Bureau|U.S. Census Bureau]], the borough has a total area of {{convert|1.1|km2|order=flip}}, of which {{convert|0.01|sqkm|order=flip|3}}, or 1.16%, is water.<ref name="Census 2010">{{cite web| url=http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_SF1/G001/1600000US4218272| title=Geographic Identifiers: 2010 Demographic Profile Data (G001): Dauphin borough, Pennsylvania| publisher=U.S. Census Bureau, American Factfinder| access-date=December 14, 2015| archive-url=https://archive.today/20200213044237/http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_SF1/G001/1600000US4218272| archive-date=February 13, 2020| url-status=dead}}</ref>