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Topographical Maps

US Topo Maps

US Topo and Historic Topo Maps

MO_Clayton_1933_Topo_Map

Researching Topographical Maps

Researching topographical maps is valuable for various purposes, including genealogical research, understanding land-forms, and conducting scientific studies. Here are some steps to get started with using topographical maps:

 

Research Tips

Getting Started

1. Identify your research objective: Determine the specific information you want to gather from the topographical map. This could include studying the terrain features, assessing elevation changes, identifying bodies of water, locating trails, or analyzing the geology of an area.

2. Locate a topographical map: Obtain a topographical map of the areas you are interested in researching. This guide includes links to several digital maps that are accessible online.

3. Familiarize yourself with the map legend: The map legend provides information about the symbols and colors used on the map. It explains the representation of various features like contour lines, roads, bodies of water, vegetation, and structures. Understanding the legend will help you interpret the map accurately.

4. Understand contour lines: Contour lines are the most significant feature of a topographical map. They represent elevation changes and help visualize the shape of the terrain. Each contour line connects points of equal elevation, and the spacing between them indicates the steepness of the slope. Closely spaced contour lines indicate a steep slope, while widely spaced lines represent a gentle slope.

5. Interpret topographical features: Using the map's contour lines and other symbols, analyze the topographical features relevant to your research objective. This could include identifying hills, valleys, ridges, cliffs, or plateaus. Pay attention to patterns, which can provide insights into the landscape's characteristics.

6. Measure distances and elevations: Topographical maps often include scale bars and elevation markings, allowing you to measure distances between points and determine the height of specific features. This information can be useful for planning routes, estimating the effort required for hiking or climbing, or assessing the suitability of an area for various activities.

7. Combine with other data sources: Topographical maps can be enhanced by incorporating additional data sources. For example, you can overlay satellite imagery, aerial photographs, or other geospatial data to better understand the area. Online mapping platforms often offer these features.

8. Take notes and record findings: As you conduct research with topographical maps, make sure to document your observations, measurements, and any important findings. this will help you organize your research and serve as a reference for future analysis or sharing your results with others.

Genealogical Research Tips

1. Identify ancestral locations: Determine the specific geographic areas where your ancestors lived. This may include towns, villages, or regions. Gather information from family documents, records, or oral history to narrow the locations.

2. Locate topographical maps: Identify topographical maps of the areas where your ancestors resided or the regions you are interested in researching.

3. Compare past and present: Look for historical topographical maps that correspond to the time period when your ancestors lived in that area. By comparing historical maps with contemporary ones, you can observe changes in the landscape, such as the growth of cities, the formation of new roads, or the disappearance of certain features.

4. Study the topographical features: Analyze the topographical features on the maps to gain insights into the physical environment. Look for rivers, lakes, mountains, forests, or other significant natural features.

5. Identify neighboring communities: Explore the maps to identify nearby communities or landmarks. This could include neighboring towns, churches, cemeteries, schools, or other places of importance. Mapping these locations can help you trace social connections and uncover additional records or resources.

6. Overlay with other data: Combine the topographical maps with other genealogical resources, such as census records, land records, or historical photographs.