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The MD iMAP Topography Viewer (https://geodata.md.gov/topoviewer/) is a truly interesting Website maintained by the State of Maryland. You can select the Howard County shaded relief data layer to see the impressions that the many quarries left in our area, including the very impressive Savage Stone quarry. There is also an Elevation Layer Transparency tool with a slider bar that allows you to overlay the topography information with other maps. You can see the stream channels, outlines of quarries, and many other features.
This Website displays the LIDAR ( Light Detection and Ranging) remote sensing data to show changes in land elevations (https://www.usgs.gov/core-science-systems/ngp/3dep). I have used this Viewer to find and confirm some quarry locations and you can view any area in Howard County, or even Maryland. I have provided some images from the Topography Viewer but it seems they have updated the imagery and it is even more granular than ever. Check it out!
Image above: This is from the Maryland LIDAR showing the very large Savage Stone llc quarry on the top right and the general topography of our area including the Middle and Little Patuxent Rivers. The green areas represent the flat coastal plain ecoregion and the yellow most represents the fall line separating the Piedmont from the Coastal Plain regions. It is a very interesting area to live in!
Images above and below: Topographic features can be discovered and shown as in these examples from Guilford (above) and Savage (below).
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