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  2. Google Earth - Wikipedia

    en.wikipedia.org/wiki/Google_Earth

    Google Earth is a computer program that renders a 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposing satellite images, aerial photography, and GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles. Users can explore the globe by entering addresses and ...

  3. Section (United States land surveying) - Wikipedia

    en.wikipedia.org/wiki/Section_(United_States...

    The existence of section lines made property descriptions far more straightforward than the old metes and bounds system. The establishment of standard east-west and north-south lines ("township" and "range lines") meant that deeds could be written without regard to temporary terrain features such as trees, piles of rocks, fences, and the like, and be worded in the style such as "Lying and ...

  4. Public Land Survey System - Wikipedia

    en.wikipedia.org/wiki/Public_Land_Survey_System

    The Public Land Survey System ( PLSS) is the surveying method developed and used in the United States to plat, or divide, real property for sale and settling. Also known as the Rectangular Survey System, it was created by the Land Ordinance of 1785 to survey land ceded to the United States by the Treaty of Paris in 1783, following the end of ...

  5. List of satellite map images with missing or unclear data

    en.wikipedia.org/wiki/List_of_satellite_map...

    This is a list of satellite map images with missing or unclear data. Some locations on free, publicly viewable satellite map services have such issues due to having been intentionally digitally obscured or blurred for various reasons of this. [1] For example, Westchester County, New York asked Google to blur potential terrorism targets (such as ...

  6. List of principal and guide meridians and base lines of the ...

    en.wikipedia.org/wiki/List_of_principal_and...

    Figure 1. This BLM map depicts the principal meridians and baselines used for surveying states (colored) in the PLSS.. The following are the principal and guide meridians and base lines of the United States, with the year established and a brief summary of what areas' land surveys are based on each.

  7. Topographic map - Wikipedia

    en.wikipedia.org/wiki/Topographic_map

    In modern mapping, a topographic map or topographic sheet is a type of map characterized by large- scale detail and quantitative representation of relief features, usually using contour lines (connecting points of equal elevation), but historically using a variety of methods. Traditional definitions require a topographic map to show both ...

  8. Contact lines are drawn over Google Earth imagery, and units are numbered from oldest (1) to youngest (8). The line X-X’ marks the orientation of the cross section drawn by students. (B) The folded nature of the rocks is readily apparent in an oblique view of the same structure in Google Earth. Both images are from Tewksbury (SERC, 2015). J ...

  9. Earth Point - Wikipedia

    en.wikipedia.org/wiki/Earth_Point

    Earth Point also maps the United States Public Land Survey System onto Google Earth. Features. Properties are located with roof-top accuracy without relying on geocoding. Property lines are drawn. Properties are defined by ESRI shape files produced by county assessor offices. These files are converted by Earth Point for use on Google Earth and ...