Cambria County lies in western Pennsylvania, where the low river valleys around Johnstown contrast sharply with the higher ground near Ebensburg and the uplands that extend north toward Patton and Northern Cambria. U.S. 22 and U.S. 219 provide major road references, while the Little Conemaugh River, Stonycreek River, reservoirs, and steep elevation changes help explain the county’s terrain. The four original A3 high-resolution JPG maps used on this page are available in the download box below.
The county is easiest to understand by treating Johnstown and Ebensburg as two different geographic anchors. Johnstown occupies a deeply cut southwestern valley where major streams meet, while Ebensburg sits on higher ground near the center of the county. North of Ebensburg, smaller creeks divide rolling uplands into many short valleys, and along the eastern side higher ridges form a strong boundary toward Blair County.
Table of Contents
The climb from Johnstown to Ebensburg reveals the county’s basic geography
Johnstown is the largest and most visually dense community on the general reference map. PA 56 passes through the city, U.S. 219 heads north toward Ebensburg, and nearby Westmont and Franklin sit close to the urban area. The Conemaugh and Stonycreek river corridors occupy the same southwestern valley, so roads, neighborhoods, and water features are tightly compressed by the surrounding hills.
Ebensburg lies farther north on substantially higher terrain and serves as the county seat. U.S. 22 and U.S. 219 pass close to the borough, making it a useful midpoint for locating Nanty-Glo to the west, Carrolltown and Patton farther north, and Loretto to the east. Pennsylvania State Archives lists Ebensburg as the seat of Cambria County, and county government offices remain centered there today.
Portage provides another useful reference in the southeast. PA 160 reaches the borough through lower mountain corridors, while PA 53 and U.S. 22 cross the eastern side toward Blair County. PA 164 and PA 869 connect southern mountain areas toward the Somerset County side. These routes rarely form a simple grid because they have to work around steep ridges and use lower gaps.
Johnstown dominates the city ranking while the other major communities are widely separated
The ranked community map highlights Johnstown, Westmont, Northern Cambria, Ebensburg, Nanty-Glo, and Geistown. The values printed in the supplied graphic are Johnstown 18,087, Westmont 4,855, Northern Cambria 3,494, Ebensburg 3,221, Nanty-Glo 2,598, and Geistown 2,507. These figures explain the map’s ranking; readers who need the newest official population estimates should check current Census Bureau releases.
Johnstown, Westmont, and Geistown form the tightest group on the map. They occupy the southwestern urban area around the Conemaugh and Stonycreek valleys, where development is much more continuous than elsewhere in the county. Ebensburg lies well to the north on higher ground, Nanty-Glo sits west of it, and Northern Cambria is separated from both by a broad rural and upland area.
This arrangement shows why Cambria County is not one continuous urban corridor. The Johnstown region has the strongest concentration of population and roads, while the center and north contain smaller boroughs separated by wooded hills, farms, and creek valleys. The community and elevation maps work especially well together because the settlement spacing follows the county’s large changes in relief.
Little Conemaugh and Stonycreek converge on the Johnstown valley
The southern water network is organized around the Johnstown valley. The Little Conemaugh River approaches from the east, while the South Fork Little Conemaugh River follows a separate southeastern corridor. Stonycreek River comes from the south and reaches the Johnstown area, where the major channels connect with the Conemaugh River system. These river valleys are among the lowest and most deeply cut parts of the county.
Several smaller reservoirs appear through the central and southwestern uplands. Williams Run Reservoir, City Reservoir, and Cresson Lake provide useful landmarks between the Ebensburg and Portage sides, while Hinckston Run Reservoir and Saltlick Reservoir sit closer to the Johnstown region. Laurel Run adds another named drainage corridor in the southwestern half of the county.
Northern Cambria County drains through a different set of valleys. North Branch Blacklick Creek follows the western side, Chest Creek occupies a central northern corridor, and Clearfield Creek runs through the northeastern half. Glendale Lake is the most prominent large water body in the north and stands out clearly among the surrounding hills.
The terrain-and-water map is designed for regional reference rather than flood determination, navigation, water quality, or reservoir operations. Those questions require current information from FEMA, USGS, Pennsylvania agencies, or the organization responsible for a particular reservoir.
Elevation ranges from about 337 to 872 meters
The elevation map shows an actual range of roughly 337 to 872 meters and a mean near 591 meters. The lowest green terrain follows the Johnstown area, the Conemaugh valley, and the lower Little Conemaugh corridor. In contrast, higher brown terrain is extensive along the eastern boundary and in parts of the south and southwest, producing a large relief difference within one county.
Ebensburg sits much higher than Johnstown, although the central county is not a flat plateau. Small streams cut the uplands into rolling ridges and shallow valleys, and the same pattern continues north toward Patton and Northern Cambria. The eastern side becomes more strongly mountainous, particularly near the Blair County boundary, where long higher ridges are easy to recognize.
The road map and elevation map explain each other. U.S. 219 climbs away from the Johnstown valley toward Ebensburg, and routes around Portage and Cresson repeatedly use lower passages between high ridges. Major roads therefore bend with the terrain instead of crossing the steepest ground in straight lines.
The elevation colors are intended for county-wide comparison, not survey-grade measurements for a specific parcel, building, bridge, or construction site. Property and engineering work should use authoritative source elevation data or professional surveying.
Johnstown is where the county’s urban landscape and river geography overlap most strongly
Johnstown stands out because the city and its waterways occupy the same narrow mountain setting. Stonycreek River approaches from the south, the Little Conemaugh system comes from the east, and the Conemaugh River carries water westward from the city area. Westmont sits on higher terrain west of downtown, while Geistown occupies another nearby hillside and valley setting to the southeast.
This terrain is inseparable from Johnstown’s history. The National Park Service explains that the South Fork Dam failed on May 31, 1889, sending floodwater down the Conemaugh Valley toward Johnstown and causing one of the most catastrophic disasters in American history. The modern water map still makes the basic east-to-west valley route easy to recognize.
Transportation is shaped by the same relief. PA 56 serves the city corridor and U.S. 219 climbs toward Ebensburg, while local roads repeatedly cross streams or climb surrounding slopes. Two points can look close on a flat map yet require an indirect road route because a steep ridge or river valley stands between them.
Ebensburg and Nanty-Glo occupy the higher central part of the county
Ebensburg is both a central geographic reference and the county seat. U.S. 22 and U.S. 219 pass nearby, and several state routes connect the borough with smaller communities in different directions. The landscape around town is higher than Johnstown and is characterized more by rolling uplands and short creek valleys than by one dominant river channel.
Nanty-Glo lies west of Ebensburg and is easy to locate near the U.S. 22 and PA 271 side of the map. Carrolltown and Patton extend the settlement pattern farther north, while Loretto occupies high ground to the east. Instead of one continuous built-up area, central Cambria County contains a series of small boroughs separated by wooded and rural land.
Pennsylvania State Archives records that Cambria County was created in 1804 and identifies Ebensburg as the county seat. Cambria County government also maintains its principal offices on South Center Street in Ebensburg, reinforcing the borough’s administrative importance even though Johnstown is the county’s largest city.
Northern Cambria is divided by creek valleys rather than a large urban center
Northern Cambria County is easier to understand from its drainage network than from any single city. Northern Cambria, Patton, and Carrolltown are separated by rolling uplands, while PA 553 and the U.S. 219 corridor provide important road references. Settlement is more dispersed than around Johnstown, and local roads often follow valleys between short ridges.
Chest Creek and Clearfield Creek form two of the strongest northern corridors, and Glendale Lake is a clear landmark in the northeastern interior. North Branch Blacklick Creek follows a separate western drainage. These waterways break the northern uplands into several local valleys, which helps explain why roads curve and why communities do not sit on one simple line.
Because the terrain is dissected, straight-line distance is a poor guide to actual travel in parts of the north. A nearby ridge can force a road to remain in one creek valley before crossing into the next. Comparing the general reference map with the water and elevation maps makes those connections much easier to see.
Portage and the eastern boundary occupy a high, broken mountain corridor
The eastern edge of Cambria County meets Blair County across some of the county’s highest terrain. U.S. 22 provides a major crossing in the central east, PA 53 follows another north-south route, and Portage sits farther southwest in a lower valley between ridges. Travel toward the Blair County side is therefore concentrated at selected mountain passages.
Cresson Lake and City Reservoir provide useful landmarks in this central-eastern upland, while Loretto sits farther north on high terrain. Toward the south, PA 164 reaches the Somerset County side through another sequence of ridges and valleys. The elevation map shows why this portion of the county feels more mountainous than the Johnstown urban floor.
Place names are less dense here than around Johnstown, so terrain becomes more important for orientation. Using the road map for crossings and the elevation map for ridges provides a clearer picture than trying to judge distance from the county outline alone.
Use each map for the kind of question it answers best
The general reference map is the fastest choice for roads and place names. It places Johnstown, Ebensburg, Northern Cambria, Portage, U.S. 22, U.S. 219, and the main state routes in one view. The ranked community map is cleaner when the goal is to compare larger population centers and understand how strongly Johnstown dominates the county’s settlement pattern.
The terrain-and-water map is better for rivers, creeks, reservoirs, and valley relationships. It shows the Little Conemaugh, Stonycreek, and Conemaugh river system near Johnstown as well as Clearfield Creek, Chest Creek, Glendale Lake, and several smaller reservoirs. The elevation map removes much of that labeling and makes the Johnstown lowlands, central uplands, and high eastern ridges easier to compare.
For printed handouts, classroom work, regional notes, or presentation slides, use the original A3 JPG files in the download archive rather than enlarging the web previews. The general and elevation maps work well together for roads and relief, while the community and water maps are useful for showing how settlements relate to river valleys.
Cambria County’s 1804 formation and Johnstown’s flood history remain visible in the modern map
Pennsylvania State Archives records that Cambria County was created on March 26, 1804 from parts of Huntingdon, Somerset, and Bedford counties, with Ebensburg serving as the county seat. The current county government continues to operate from Ebensburg, making the borough an administrative center on the higher central plateau.
Johnstown represents a different part of the county’s history. Cambria County’s official tourism page describes the role of nineteenth-century immigrants and the steel industry in the Johnstown area, while the National Park Service preserves the history of the 1889 flood and the South Fork Dam. The city’s position in a deep river valley is visible on both the water and elevation maps.
Modern Cambria County therefore combines several distinct settings: the Johnstown urban valley, Ebensburg’s county-seat uplands, northern boroughs such as Patton and Northern Cambria, and high mountain terrain around Portage and the eastern edge. Comparing roads, communities, waterways, and elevation provides a fuller picture than any one map can show alone.
Frequently Asked Questions
Should I use Johnstown or Ebensburg as the main reference point in Cambria County?
Use Johnstown for the southwestern urban area and river valleys, but use Ebensburg when orienting the entire county. Ebensburg is the county seat near U.S. 22 and U.S. 219, while Johnstown is the largest city and the main reference for the Conemaugh and Stonycreek valleys.
How are the Little Conemaugh and Stonycreek rivers related to Johnstown?
Both waterways reach the Johnstown area through low mountain valleys. The Little Conemaugh approaches from the east and Stonycreek comes from the south, with their waters entering the Conemaugh River system around the city. The terrain-and-water and elevation maps make these converging valleys easy to compare.
Can the 337–872 meter elevation range be used as an exact property elevation?
No. The range summarizes county-wide terrain and is useful for comparing Johnstown’s low valley with the higher central and eastern uplands. It does not provide a survey-grade elevation for a particular parcel or structure, so site-specific work should rely on authoritative elevation data or professional surveying.
Map File Information
The download ZIP contains four A3 high-resolution JPG files: the Cambria County general reference map, ranked community map, terrain-and-water map, and elevation map. These original files are larger than the web previews and are better suited to printing, classroom handouts, regional notes, and presentation slides.
- 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
- Cambria County official website: county government and current Ebensburg administrative information.
- Pennsylvania State Archives – County Courthouses: county creation date and Ebensburg county-seat record.
- National Park Service – Johnstown Flood National Memorial: official information on the South Fork Dam and the 1889 Johnstown Flood.
- U.S. Census Bureau TIGER/Line Shapefiles: county boundary and transportation geography.
- USGS National Hydrography: rivers, streams, lakes, and reservoir data.
- USGS 3D Elevation Program: elevation data and 3DEP documentation.
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.
