Jefferson County sits where the western side of the Denver metropolitan area meets the steep foothills and mountain valleys of Colorado’s Front Range. The supplied maps make that transition easy to see. Lakewood, Wheat Ridge, Edgewater, Arvada, and other urban places cluster along the lower eastern side, while Golden sits close to the break between city development and higher terrain. Farther west and south, the county becomes much more mountainous, with fewer large communities and many more creeks, reservoirs, valleys, and winding roads. This Jefferson County Colorado Map page brings those patterns together, and the same map set is available below as high-resolution JPG files in one ZIP download.
A useful way to read Jefferson County is to start around Golden and then look in both directions. To the east, Lakewood and Wheat Ridge connect visually with the Denver-side urban area, with Arvada farther north and Edgewater close to the county’s eastern edge. To the west, Golden quickly gives way to more rugged terrain, while Evergreen appears deeper in the foothills. The water map adds Ralston Creek, Bear Creek Lake, the South Platte River system, and several reservoirs. The elevation map then explains why the eastern cities occupy much gentler terrain than the western and southern parts of the county.
Table of Contents
The county changes quickly from Denver-side cities to mountain country
Jefferson County has a long, irregular shape rather than a compact rectangular outline. The northern and eastern portions contain a dense group of incorporated places, while a much longer mountain section extends southward. On the reference map, Westminster and Arvada appear near the north, Wheat Ridge and Edgewater sit farther south along the urban side, and Lakewood occupies a broad area below them. Golden lies just west of this cluster. Morrison marks another foothill entrance south of Lakewood, while Evergreen is set well inside the mountain terrain.
That contrast is one of the most useful things to notice before looking at individual roads or rivers. A visitor who knows Jefferson County only from Lakewood or Arvada might not expect how far the county reaches into the mountains. The southern portion contains few large city labels on the supplied map, but it is crossed by many small streams and shaped by narrow valleys and high ridges. This difference between the urban east and the mountain west and south gives the county map much of its geographic character.
The road network reinforces the same pattern. I-70 and US 40 cross the foothill zone near Golden and continue west into higher terrain. US 6 also reaches Golden, while CO 93 runs north from the Golden area and CO 74 serves the Morrison–Evergreen direction. US 285 leaves the urban side farther south and heads toward the mountain portion of the county. CO 72 appears in the north. These routes provide practical landmarks for finding places on the map because the terrain becomes more complex as the roads leave the plains.
Lakewood and Arvada dominate the city index, but Golden explains the geography
The city map simplifies the county by emphasizing six ranked places: Lakewood, Arvada, Wheat Ridge, Golden, Edgewater, and Mountain View. Lakewood ranks first on the supplied index and Arvada second, followed by Wheat Ridge and Golden. Edgewater and Mountain View are much smaller, but their locations help show how closely packed the municipal boundaries become along the Denver-facing side of the county.
These six places are not spread evenly from north to south. They are concentrated in the northern and eastern urban portion. Lakewood covers a large area on the lower east side, Golden sits to its northwest near the foothill break, and Wheat Ridge lies north of Lakewood. Arvada is farther north, while Edgewater and Mountain View are small communities close to the eastern side of the urban cluster. Once the reader moves south or west from this group, the map contains far fewer major city labels.
Golden is especially useful as an orientation point because it sits near the place where the visual texture of the county changes. East of Golden, road and city labels are dense. West of Golden, the map opens into more rugged country. For someone trying to compare the main urban centers, the city map is the clearest starting point. For Evergreen, Morrison, foothill roads, or the southern mountain extension, the broader county map gives much more useful context.
Ralston Creek, Bear Creek Lake, and the South Platte system reveal different parts of the county
The terrain-and-water map adds another layer that is easy to miss on a city-focused view. In the north, Ralston Creek runs out of the foothills toward lower ground and is paired with Ralston Reservoir. Rocky Flats Lake, Upper Long Lake, Hyatt Lake, and Stanley Lake are also labeled in this part of the map. Crown Hill Lake and Smith Reservoir appear farther south on the urban side, while Bear Creek Lake sits near the foothill edge below the Lakewood area.
The southern half looks different. The South Platte River is labeled along the eastern side of the mountain section, and the North Fork South Platte River appears farther west before the river system continues through rugged terrain. Wellington Lake is marked much farther south. Numerous smaller blue stream lines fill the valleys between these named waters. The relief background makes it clear that many of those streams occupy narrow mountain corridors rather than the broad, gentle landscape seen near the Denver side.
This is a reference map for understanding where visible water features and terrain lie. It should not be treated as a flood-hazard map, a property-boundary product, or a navigation chart. Its value is in comparison: the northern urban area contains several named lakes and reservoirs close together, while the long southern mountain portion is more strongly defined by river valleys and tributaries. Reading the water map next to the road map also helps explain why some routes follow valleys instead of taking a direct line through the mountains.
Elevation rises from about 1,600 meters to more than 3,500 meters
The supplied elevation map lists an actual county range of roughly 1,600 to 3,516 meters, with a mean elevation of about 2,182 meters. The lowest colors cover much of the eastern urban side, especially near the broad lower ground adjoining Denver. Moving west, the colors shift quickly through higher bands. The western and southwestern portions contain the strongest concentrations of high terrain, broken by narrow valleys that appear as lower strips between ridges.
This elevation pattern gives extra meaning to the settlement map. Lakewood, Wheat Ridge, Edgewater, and much of Arvada sit in the lower part of the county. Golden is close to the transition zone, where the land rises abruptly westward. Evergreen lies within a much higher and more dissected landscape. Farther south, the county continues through rugged terrain where the elevation map shows repeated ridges, valleys, and high mountain blocks rather than the broad low surface found on the east.
The elevation surface is useful for county-scale comparison, not for survey or engineering work. It shows where the major high and low areas are and how sharply the terrain changes, but it does not replace site-specific measurements. For map reading, however, it is especially helpful when paired with I-70, CO 74, and US 285 on the reference map. Those corridors move from lower urban ground into increasingly rugged terrain, and the elevation map makes that transition visible even when individual contour lines are not shown.
Jefferson County maps answer different questions depending on where you are looking
If the goal is to locate the main municipalities, start with the city map. It removes much of the extra detail and makes the Lakewood–Golden–Wheat Ridge–Arvada cluster easy to compare. If the task is to follow roads into Evergreen, Morrison, or the long southern part of the county, use the county reference map instead. The terrain-and-water map is better for finding Ralston Creek, Bear Creek Lake, reservoirs, and the South Platte system. The elevation map is the best companion when the main question is how quickly the land rises away from the Denver side.
The county’s official Parks & Open Space system provides useful real-world context for that transition. Jefferson County reports more than 58,000 acres of preserved land, 27 parks, and more than 275 miles of trails. Those figures help explain why so much of the western side is better understood through terrain, valleys, and open-space geography than through a dense city grid. The maps on this page are not detailed park or trail maps, so anyone planning a visit should use the official Jefferson County park pages for current access, trail, and regulation information.
For printing, close inspection, or offline use, the web previews are not the only option. The downloadable archive contains the original high-resolution JPG versions of the four supplied maps. That makes it possible to enlarge labels and terrain detail more comfortably than on a small screen while keeping the same county, city, water, and elevation content shown in the article.
Frequently Asked Questions
Why do Golden and Lakewood look so different on the elevation map?
Lakewood lies mainly on the lower eastern side of the county, while Golden is close to the foothill transition. The elevation map shows the land rising quickly west of Golden, so the colors and relief become much more varied over a short distance. Comparing the city and elevation maps side by side is the easiest way to see that change.
Which map should I use for Ralston Creek and the South Platte River?
Use the terrain-and-water map. It labels Ralston Creek and Ralston Reservoir in the north and also shows the South Platte River and North Fork South Platte River in the southern mountain portion. It is intended for geographic reference rather than flood analysis or legal water-boundary work.
Are the downloadable maps higher resolution than the page previews?
Yes. The page previews are WebP images sized for web viewing, while the ZIP is set up to provide the original JPG versions at 3,638 × 2,572 pixels each. The content matches the four map types shown in the article.
Map File Information
The ZIP contains the high-resolution JPG originals used on this Jefferson County page: the county reference map, major-city map, terrain-and-water map, and elevation map.
- Included Files: 4 high-resolution JPG maps
- Printable Size: 3,638 × 2,572 pixels per JPG
Related Maps
Sources and references
- Jefferson County Parks & Open Space – Parks – official information about the county park and open-space system.
- Jefferson County Parks & Open Space – About Us – official background on preserved land, parks, and trails.
- U.S. Census Bureau TIGER/Line Shapefiles – official reference data for county boundaries, roads, and mapped places.
- USGS National Hydrography – official hydrography reference for streams and water features.
- USGS 3D Elevation Program – official elevation-data reference.
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.
