Why don’t all USGS 7.5 minute topographic maps show the UTM grid?

For maps in the Historical Topographic Map Collection (1884-2006): Through time, policies have changed regarding whether or not a full UTM grid would appear on the 7.5-minute map series. Beginning in the mid 1950's, the grid was indicated by blue ticks around the map at 1000 meter spacing. In 1979, the ticks were replaced with a full-line black UTM grid. This decision was reversed in 1992, then reversed again in 1994, but the 7.5-minute topographic program was winding down by this time and relatively few maps were affected. Maps published over National Forests in cooperation with U.S. Forest Service do not show the full grid regardless of their vintage.

For US Topo maps (2010 and later): All US Topo maps have a full UTM grid that is implemented in conformance with the U.S. National Grid (USNG) standard. Because US Topo maps are published as layered PDF documents, users have the option to turn the grid off.

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Why do Landsat scenes in the Southern Hemisphere display negative UTM values?

Traditional Universal Transverse Mercator (UTM) convention distinguishes between the Northern and Southern Hemispheres. In the Northern Hemisphere, the UTM zone is a positive value or identified as UTM North. In the Southern Hemisphere, the UTM zone is a negative value or identified as UTM South. UTM North scenes in this convention have a false...

What does the term UTM mean? Is UTM better or more accurate than latitude/longitude?

UTM is the acronym for Universal Transverse Mercator, a plane coordinate grid system named for the map projection on which it is based (Transverse Mercator). The UTM system consists of 60 zones, each 6-degrees of longitude in width. The zones are numbered 1-60, beginning at 180-degrees longitude and increasing to the east. The military uses their...

How are UTM coordinates measured on a USGS topographic maps? Are UTM ticks shown on all topographic maps?

The UTM ( Universal Transverse Mercator ) coordinate system divides the world into sixty north-south zones, each 6 degrees of longitude wide. UTM zones are numbered consecutively beginning with Zone 1, which includes the westernmost point of Alaska, and progress eastward to Zone 16, which includes Maine. If UTM ticks are shown on a USGS...

Why don't Forest Service maps have Universal Transverse Mercator (UTM) grids?

The Universal Transverse Mercator (UTM) grid is not used on the Forest Visitor Map series because of the maps’ small scale and intended use. The more detailed Wilderness and Special Area maps published by the Forest Service (some of which are available through the USGS Store ) might have UTM grid ticks. UTM grids are included on all US Topo maps (...
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PubTalk 11/2010 — Silicon, Software, and Science

Monitoring the Earth's Landscape with Low-Cost High-Tech

by Rian Bogle, Remote Sensing Specialist

 

  • The USGS is one of the world's largest providers of remote sensing data, employing the best tools and techniques to expand our knowledge of the Earth.
  • Working with low-cost field and aerial imaging technologies,
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