Adams County sits in south-central Pennsylvania, with Gettysburg near the middle of a road network that reaches toward York County, Cumberland County, Franklin County, and the Maryland line. The county changes noticeably from east to west. Around Gettysburg, New Oxford, McSherrystown, and Littlestown, the terrain is generally lower and roads are more closely spaced. Along the western side, long ridges of South Mountain rise sharply above the central lowlands. This page brings those relationships together through county, community, water, and elevation maps, and the same map set is available below as high-resolution JPG files for download.
For a quick orientation, start with Gettysburg and two major U.S. highways. U.S. 30 runs east-west through Gettysburg toward New Oxford, while U.S. 15 passes just east of town on a north-south line. From that basic frame, smaller state routes lead to Biglerville, Fairfield, Littlestown, East Berlin, York Springs, and other boroughs and communities. The water and elevation maps add another layer: Conewago Creek and Marsh Creek cross different parts of the county, while the high western ridges explain why the road pattern becomes less dense as it approaches South Mountain.
Table of Contents
Gettysburg anchors the county road pattern
The general county map makes Gettysburg the easiest reference point. U.S. 30 enters from the west, crosses the Gettysburg area, and continues east toward New Oxford. U.S. 15 runs north-south just east of Gettysburg and provides the clearest long-distance route through the central part of the county. Several Pennsylvania routes branch outward from the same area. PA 34 heads north toward Biglerville and Bendersville, PA 97 reaches south toward Maryland, PA 116 travels east through the Bonneauville and McSherrystown area, and PA 134 continues south from Gettysburg. Reading these roads together gives a much clearer picture than treating each route as an isolated line.
The map also shows how settlement changes near the county edges. East Berlin, Abbottstown, New Oxford, and McSherrystown sit near the York County side. York Springs is farther north, while Fairfield and Carroll Valley lie to the southwest near the higher terrain. PA 94 serves the northeastern part of the county, PA 194 reaches the Littlestown area, and PA 16 crosses the southwest. In the northwest, PA 233 and PA 234 provide routes near the mountain front. The county boundary therefore encloses several distinct travel patterns rather than one uniform grid.
Terrain helps explain those patterns. The central and eastern parts of Adams County allow more routes to spread across rolling ground, while western roads have to work through ridges, gaps, and valleys. A road map by itself shows where the routes go, but comparing it with the elevation layer makes their shapes more meaningful. Gettysburg stands at a useful transition point between the mountain country to the west and the lower, more connected communities to the east and southeast.
Six mapped communities show the county’s main settlement pattern
The community map highlights Gettysburg, Littlestown, Carroll Valley, McSherrystown, Bonneauville, and New Oxford. Gettysburg occupies the central position and is the most useful point for judging direction. New Oxford and McSherrystown are east of Gettysburg, Bonneauville lies between the central and eastern group, and Littlestown is farther southeast. Carroll Valley is different from the others because it sits in the southwest close to the rising ground along South Mountain. The simplified display makes these location differences easier to see than on the full road map.
When the community map is compared with the highway layer, the relationship between settlements and routes becomes clearer. New Oxford is reached along the U.S. 30 corridor, while Bonneauville and McSherrystown line up with the road network east of Gettysburg, including PA 116. Littlestown is tied to routes in the southeastern corner, and Carroll Valley is separated from the eastern group by more rugged terrain. This is useful for explaining the county to someone who needs a simple regional picture rather than a detailed street map.
Gettysburg also has a role that goes beyond its central map position. It is the county seat and is closely associated with Gettysburg National Military Park. National Park Service directions identify U.S. 15 and U.S. 30 as major approaches to the Gettysburg area. The map on this page, however, is not a replacement for a battlefield visitor map. It is best used to understand where Gettysburg sits within Adams County and how the surrounding communities relate to the larger county road and terrain pattern.
Conewago, Marsh, and smaller creeks reveal two drainage directions
The terrain-and-water map adds a dense network of streams that is easy to miss on the road map. Conewago Creek appears in the northwest, while Opossum Creek and Bermudian Creek drain parts of the northern county. Marsh Creek crosses the western-central area, and Middle Creek runs through the southwest. Rock Creek and Pine Run appear farther south and closer to the Gettysburg side of the county. Numerous unnamed tributaries branch into these larger streams, showing how heavily the landscape is divided by small valleys.
Adams County planning documents describe a broader watershed split that helps explain this map. Roughly one side of the county drains toward the Susquehanna River system through Conewago Creek and related tributaries, while the other side drains toward the Potomac River system through streams connected with the Monocacy watershed. The map is not designed as a formal watershed-boundary product, but the stream directions and mountain divides give useful visual context for that larger pattern.
Several lakes and reservoirs provide additional landmarks. Lake Meade is in the northeastern part of the county, Lake Heritage is south of the central area, and Kaiser Lake and Hanover Reservoir appear toward the east. In the southwest, K Section Lake, Charnita Lake, and K Section Pond form a small cluster of named water bodies. These features are useful for orientation, but the water map should not be treated as a flood-risk, navigation, water-depth, or property-boundary map. Specialized official sources are needed for those purposes.
South Mountain creates the strongest elevation contrast
The elevation map is dominated by the western ridges. Brown and tan bands run along the Franklin County side, while much of the central and eastern county appears in lower green shades. Adams County planning material describes South Mountain as a northern extension of the Blue Ridge Mountains and notes that it rises well above the Gettysburg Plain along the western border. The provided map shows the same contrast clearly, with long northeast-southwest ridges separated by lower valleys.
The map legend gives an approximate county elevation range of 62 to 629 meters and a mean near 225 meters. Those values are useful for broad comparison rather than site-specific measurement. Around Gettysburg and farther east, the surface is lower and more gently rolling. The southwest near Fairfield and Carroll Valley sits much closer to the high ridges, so elevation changes happen over shorter distances. Northern Adams County contains smaller ridges and hills as well, but they are less continuous than the major mountain belt on the western side.
Elevation also helps explain why the county road map changes character from east to west. In the lower central and eastern areas, routes can spread in several directions between communities. Near South Mountain, roads are more likely to follow valleys or cross through limited gaps in the ridges. The elevation layer is therefore valuable for general geographic understanding, classroom work, and regional planning context, but it is not survey-grade data and should not be used to determine a precise parcel elevation or engineering design height.
U.S. 30 and U.S. 15 provide the simplest way to orient the county
For practical map reading, U.S. 30 and U.S. 15 are the best first references. U.S. 30 gives the county a strong east-west line through Gettysburg and New Oxford. U.S. 15 creates a north-south reference just east of Gettysburg and continues toward both Cumberland County and Maryland. Once those two roads are located, secondary routes become easier to place: PA 34 leads north, PA 97 and PA 134 head south, PA 116 travels east, and PA 94 serves the northeastern area.
This road structure is also useful when comparing the county with official visitor information. The National Park Service directs drivers to Gettysburg from U.S. 15 and U.S. 30, which matches the large-scale pattern visible here. Visitors should still use current park directions for entrances, closures, parking, and battlefield roads, because a county reference map does not contain that level of detail. The value of this map is its broader view: it shows how a destination in Gettysburg relates to the rest of Adams County before a traveler switches to a local map.
Western travel looks different. PA 16, PA 233, and PA 234 approach areas where ridges and valleys become much more important. Fairfield and Carroll Valley sit close to this transition, while the mountain landscape continues toward Franklin County. In the north, PA 34 links Gettysburg with Biglerville and the communities beyond. Reading the route numbers together with terrain is a simple way to avoid seeing the county as a flat road diagram.
Gettysburg Plain and South Mountain form two very different settings
One of the most useful geographic contrasts in Adams County is the relationship between the Gettysburg area and South Mountain. The central county is broad enough to support a denser road network and several closely spaced communities. The west is defined by higher forested ridges and narrower valleys. County planning documents describe this transition in detail, and the map pair makes it easy to recognize without needing technical terminology. The difference can be seen by moving from Gettysburg west toward Fairfield and then toward the Franklin County boundary.
Part of Michaux State Forest extends into Adams County within the South Mountain region. Pennsylvania’s Department of Conservation and Natural Resources states that the forest spans Adams, Cumberland, and Franklin counties. That provides useful context for the wooded mountain landscape on the western side, although the maps here do not show exact state-forest ownership boundaries. Anyone planning a hike, hunt, forest drive, or other recreation should use the latest DCNR map and regulations in addition to this county overview.
Gettysburg represents a different kind of landscape focus. Gettysburg National Military Park lies within Adams County and surrounds important historic areas near the borough. The county map can show where Gettysburg is located relative to South Mountain, New Oxford, Littlestown, and the Maryland line, while the National Park Service provides the detailed battlefield information. Using each map for the job it was designed to do produces a clearer result than trying to make one general county map answer every question.
Choosing the right Adams County map for the task
Use the general county map when you need roads, named places, county boundaries, parks, and surrounding areas in one view. It works well as the first page in a local reference packet or as a planning map before a trip. The community map is better when the goal is simply to compare the relative positions of Gettysburg, Littlestown, Carroll Valley, McSherrystown, Bonneauville, and New Oxford without the distraction of many road labels.
The terrain-and-water map is the better choice for streams, lakes, reservoirs, and valley context. It makes Conewago Creek, Marsh Creek, Middle Creek, and several named water bodies easier to locate. The elevation map is most useful when the question is why western Adams County looks and travels differently from the center and east. The high South Mountain ridges stand out immediately, while lower areas around Gettysburg and the eastern communities are shown in contrasting shades.
These maps are intended for regional reference, education, printing, and general orientation. They are not substitutes for legal parcel maps, current highway engineering plans, flood-insurance maps, or survey-grade elevation data. For specialized decisions, use the appropriate county, state, federal, or professional source. For everyday geographic questions, however, moving between the four layers is an efficient way to connect communities, roads, waterways, and terrain without crowding every detail onto one image.
Frequently Asked Questions
Where is Gettysburg within Adams County?
Gettysburg is near the center of the county and is the main reference point for the road network. U.S. 30 passes through the Gettysburg area, U.S. 15 runs just to the east, and several Pennsylvania routes lead north, south, and east from town. Its position makes it useful for comparing the western mountains with communities such as New Oxford and Littlestown.
Why is western Adams County much higher on the elevation map?
The western edge contains the South Mountain ridges, a northern extension of the Blue Ridge mountain system. On the supplied elevation map, these ridges appear in the highest color classes, while Gettysburg and much of the east are lower. The map legend shows a broad county range of about 62 to 629 meters, intended for regional comparison rather than precise site measurement.
Can the water map be used to identify flood zones?
No. The water map is a general reference for creeks, tributaries, lakes, reservoirs, and terrain. It does not show regulatory flood zones, expected flood depth, or property-specific risk. For flood decisions, use current FEMA and local-government flood information.
Map File Information
The download ZIP contains high-resolution JPG versions of the Adams County general map, community map, terrain-and-water map, and elevation map. The original JPG files are larger than the web previews and are suitable for printing, classroom material, personal reference, and local presentation documents.
- Included Files: Use only the versions confirmed in the article and supplied images
- File Type: Use the confirmed download contents
- Intended Use: Printing, education, presentations, and map-based projects
Related Maps
Sources and References
- Adams County, Pennsylvania: official county services, local information, and GIS resources.
- National Park Service – Gettysburg National Military Park: official information about the park, Gettysburg access, and visitor resources.
- Pennsylvania DCNR – Michaux State Forest: official information about the South Mountain forest district spanning Adams and neighboring counties.
- U.S. Census Bureau TIGER/Line: county boundary and transportation geography reference data.
- U.S. Geological Survey – National Hydrography: reference source for streams and water features.
- U.S. Geological Survey – 3D Elevation Program: reference source for elevation data.
Green Map creates custom-edited map images using open geographic data sources such as geoBoundaries, Natural Earth, OpenStreetMap, and government open data. These maps are edited visual materials, not raw data files, and are provided for education, documents, presentations, and graphic reference.
