Ralls County lies in northeastern Missouri, with New London serving as the clearest road and settlement reference between rolling uplands and the Salt River lowlands. Center and Perry lie to the west and southwest, Rensselaer sits near the northern edge, and the Mississippi River is close to the narrow northeastern side of the county. U.S. 61 passes through New London, while Routes 19, 79, and 154 help organize the western, eastern, and southern portions. High-resolution map files are available for download in the section below.
This page separates those features into a general county map, a city-connections map, a terrain-and-water map, and an elevation map. High-resolution JPG originals of all four can be downloaded together in one ZIP for closer viewing, A3 printing, classroom work, reports, or other large-format reference use.
Table of Contents
New London anchors U.S. 61 through the central county
New London sits slightly northeast of the county’s center and is the easiest place to begin reading the general map. U.S. 61 runs north-south through the area and continues toward Hannibal, giving the map a strong central road reference. Center lies to the west, and the road connection between the two helps organize much of the interior.
Perry occupies the southwestern part of the county near Route 19. Along the southern edge, Route 154 runs east-west and meets the U.S. 54 corridor near the county line. Those roads provide a separate framework for the broad rural area south and west of New London.
Route 79 appears near the northeastern side close to the Mississippi River and the Saverton area beyond the county. The boundary narrows sharply toward this side, unlike the straighter western edge. That unusual outline makes the northeast easy to recognize once the river-side roads have been located.
Rensselaer provides a northern reference, while Perry marks the southwest. Together with New London and Center, these places show how widely the county’s settlements are spaced. Starting with U.S. 61 before moving to smaller roads makes the largely rural road network easier to follow.

Center, Rensselaer, and Perry spread around New London
The city-connections map uses New London as its hub and shows three direct-distance links. Center lies about 9 miles away, Rensselaer about 10 miles, and Perry about 18 miles from New London in straight-line distance. These are direct point-to-point measurements rather than driving mileage.
The map index labels New London with 1,130, Perry with 640, Center with 537, and Rensselaer with 243. New London is therefore the largest of the highlighted places, but each of the smaller communities gives a useful geographic reference for a different part of the county.
Center sits southwest of New London, Rensselaer lies toward the north, and Perry is farther into the southwestern county. Actual road travel can be longer than the connector lines suggest because the Salt River and many creeks cut across the landscape. The city map is best for relative position, while the general map is better for actual road connections.
Nearby Hannibal, Bowling Green, and Frankford appear outside Ralls County on the broader map, so the simplified city view is also useful for keeping the county’s own highlighted communities separate from neighboring places.

Salt River and Clarence Cannon Reservoir form the broad central lowland
The Salt River is the dominant water feature on the terrain-and-water map. It winds across the northern and central county before continuing toward the Mississippi River, and its valley is much broader than most of the surrounding tributary cuts. Clarence Cannon Reservoir extends into the western side and connects directly with this river system.
Lick Creek and Elk Creek are labeled north of the Salt River, with Ely Creek farther west. Brush Creek creates a long interior valley in the central-east. These tributaries show how the higher terrain around the main river is divided into many smaller ridges and hollows.
Spencer Creek is a major southern reference, joined by smaller features such as Gallaher Creek and Bear Branch. Eisele Lake appears close to the southern edge, while Murphy Bay marks a water feature near the Mississippi River side. Together they make it easier to separate the central Salt River system from the southern and eastern drainage areas.
The terrain-and-water map is intended for geographic reference, not flood determination, depth analysis, navigation, parcel boundaries, or legal water boundaries. River stages and reservoir conditions change, so current flood, boating, or safety decisions should rely on the appropriate official source.

Elevation ranges from about 137 to 261 meters
The elevation map reports an actual range of roughly 137 to 261 meters and a mean near 205 meters. The lowest dark greens follow the Salt River and Clarence Cannon Reservoir, forming a broad central lowland. Low terrain also extends toward the Mississippi River side in the northeast.
Higher tan and brown terrain is most extensive across the southwest, west, and parts of the northern edge. The uplands around the Perry side rise well above the Salt River valley and are cut by narrow tributaries. Similar ridge-and-creek patterns appear north of the river around Lick Creek and nearby drainage lines.
The northeastern county drops toward the Mississippi River, but steep uplands remain close to the low river corridor. The Salt River outlet also occupies a narrow low passage between higher terrain. Comparing the water and elevation maps makes the relationship between streams and lower ground especially clear.
This county-scale elevation surface is useful for broad relief comparison, not for engineering, construction, drainage design, parcel-level elevation decisions, or survey-grade measurement. Site-specific work requires more detailed official elevation data or field surveying.

Use New London, Salt River, and the elevation colors as reference layers
Start with the general county map when roads and settlement locations matter most. New London and U.S. 61 provide the immediate framework, after which Center, Perry, and Rensselaer are easy to place. The city map is faster when you only need direction and straight-line distance from New London to the three highlighted communities.
For waterways, begin with the Salt River and Clarence Cannon Reservoir, then compare Brush Creek, Spencer Creek, and Lick Creek. Moving to the elevation map afterward shows how the broad green river corridor separates higher uplands and why the southwest and northern edges look more rugged.
Ralls County is shaped more by small towns, rolling farmland, and the Salt River system than by a dense urban road network. The general map explains how communities connect, while the water and elevation maps reveal the large central lowland and the ridges around it.
The downloadable JPG originals contain more pixels than the WebP previews embedded on the page, making them better for enlargement, A3 printing, classroom handouts, reports, and personal reference. They remain general-purpose maps, however. Legal boundaries, property ownership, live road restrictions, flood status, reservoir conditions, and precise site elevations should always be checked against the appropriate current official source.
Frequently Asked Questions
How far are Center, Rensselaer, and Perry from New London?
The city map shows straight-line distances of about 9 miles to Center, 10 miles to Rensselaer, and 18 miles to Perry from New London. Driving mileage can be longer because roads must follow the rural road network and cross river and creek valleys.
How much elevation change is shown across Ralls County?
The elevation map shows an actual range of about 137 to 261 meters with a mean near 205 meters. Salt River and reservoir lowlands are lowest, while the southwest, west, and northern uplands reach higher elevations.
Which waterways are the best starting points on the terrain map?
Start with the Salt River and Clarence Cannon Reservoir, then compare Brush Creek, Spencer Creek, and Lick Creek. Murphy Bay provides another useful reference close to the Mississippi River side.
Map File Information
The download ZIP contains high-resolution JPG versions of the Ralls County general map, city map, terrain-and-water map, and elevation map.
- File Type: JPG
Related Maps
Sources and References
Boundary and road reference data are supported by U.S. Census Bureau TIGER/Line, water features by USGS National Hydrography, and elevation data by the USGS 3D Elevation Program.
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.





