A railroad crossing over the Penobscot River in Grindstone, Maine
A railroad crossing over the Penobscot River in Grindstone, MaineA railroad crossing over the East Branch Penobscot River located at a streamgage 01029500 in Grindstone, Maine
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The original USGS 7.5-minute (1:24,000 scale) Historical Topographic Maps (produced 1945-1992) included feature classes that are not yet shown on US Topo maps (produced 2009-present). Examples include pipelines, power lines, survey markers, many types of boundaries, and many types of buildings. The USGS no longer does field verification or other primary data collection for these feature classes, and there are no national data sources suitable for general-purpose, 1:24,000-scale maps. For many of these feature classes, the USGS is working with other agencies to develop data. Over time, as these data become available and are included in The National Map, that content will be added to the US Topos.
Since US Topo maps are mass produced from national databases, some features shown on traditional maps might never be included on US Topo maps. For example, a national database of isolated ranch windmills and water tanks is unlikely to ever be built.
The U.S. Geological Survey (USGS) has been the primary civilian mapping agency of the United States since 1879. Some of the most well-known USGS maps are the 1:24,000-scale topographic maps, also called 7.5-minute quadrangles. In 2009, the USGS transitioned from our hand scribed historical topographic maps to US Topos, which are computer-generated on a regular schedule using national databases...
Historically, USGS topographic maps were made using data from primary sources including direct field observations. Those maps were compiled, drawn, and edited by hand. By today's standards, those traditional methods are very expensive and time-consuming, and the USGS no longer has funding to make maps that way. A new USGS topographic map series was launched in 2009 and branded " US Topo." Though...
Improving boundaries for USGS topographic maps is an ongoing effort. Boundaries have been added to computer-generated US Topo maps (published 2009-present) as digital versions become available: 2009-2010 – The U.S. national boundary was the only boundary shown. 2011 – State and county boundaries added using TIGER/Line data from the U.S. Census Bureau. 2011 – U.S. Forest Service areas added. 2013...
US Topo maps are as accurate as the data sources used to make them, but because these sources are many and varied, it is not possible to make a single simple statement that the map as a whole meets a particular level of accuracy. US Topo maps, therefore, do not have a traditional accuracy statement in the map collar. Accuracy information for individual data sources is included in the metadata file...
US Topo maps are updated on a three-year production cycle (maps covering one third of the country are updated each year). The US Topo production schedule follows the U.S. Department of Agriculture's National Agricultural Imagery Program (NAIP) collection schedule. This does not include US Topos for Alaska, which are on a different schedule. The linework features shown on the maps are generated...
View map indexes on these interactive maps (you must zoom in to see the index lines and map names) : Map Locator on the USGS Store - Click the icon on the left that looks like two pieces of paper and select “1:24,000” for our standard map series. TopoView - Click on any of the round map scale indicators on the right side of the map. The National Map Viewer - Click on the Layer List icon at the top...
Like topographic maps, topographic map symbols have evolved over time. There is no single document that describes all of the symbols used on all USGS topographic maps since they were first created. Maps published 2013-present: US Topo maps have a symbol sheet attached to the map file (PDF format only). Open the PDF file in Adobe Acrobat and click on the paperclip icon. Maps published 1947-2009...
A railroad crossing over the East Branch Penobscot River located at a streamgage 01029500 in Grindstone, Maine
A railroad crossing over the East Branch Penobscot River located at a streamgage 01029500 in Grindstone, Maine
Power lines run along a dirt track through the Morley Nelson Snake River Birds of Prey National Conservation Area in southern Idaho. Power poles are often the tallest structures available for bird perching and nesting in flat landscapes without trees.
Power lines run along a dirt track through the Morley Nelson Snake River Birds of Prey National Conservation Area in southern Idaho. Power poles are often the tallest structures available for bird perching and nesting in flat landscapes without trees.
A scenic view of the Indian Peaks Wilderness Area located in Colorado. The hike begins at the Fourth of July trail-head and guides you to Lake Dorothy, the highest named lake in the Wilderness Area at 12,061 ft ( 3676 m).
A scenic view of the Indian Peaks Wilderness Area located in Colorado. The hike begins at the Fourth of July trail-head and guides you to Lake Dorothy, the highest named lake in the Wilderness Area at 12,061 ft ( 3676 m).
Grant Village boat dock, on the West Thumb of Yellowstone Lake, where a water-level sensor measures the level of the lake. Photo by David Mencin (EarthScope Consortium).
Grant Village boat dock, on the West Thumb of Yellowstone Lake, where a water-level sensor measures the level of the lake. Photo by David Mencin (EarthScope Consortium).
USGS scientists are working alongside University researchers in Alaska to understand how groundwater and permafrost conditions change over time due to seasonal variations and climate change. View down the oil pipeline through one April 2017 study area. (April 2017)
USGS scientists are working alongside University researchers in Alaska to understand how groundwater and permafrost conditions change over time due to seasonal variations and climate change. View down the oil pipeline through one April 2017 study area. (April 2017)
Trail Near Blue Ridge Parkway Near Afton, Virginia
Trail Near Blue Ridge Parkway Near Afton, Virginia
The Cuyahoga Valley National Park stretches along the Cuyahoga River between Cleveland and Akron in Ohio. It preserves the river ecology of the Cuyahoga River as well as historic transportation routes, such as the Cuyahoga Canal Towpath and the Cuyahoga Valley Scenic Railroad.
The Cuyahoga Valley National Park stretches along the Cuyahoga River between Cleveland and Akron in Ohio. It preserves the river ecology of the Cuyahoga River as well as historic transportation routes, such as the Cuyahoga Canal Towpath and the Cuyahoga Valley Scenic Railroad.
US Topo is the next generation of topographic maps from the U.S. Geological Survey (USGS). Arranged in the familiar 7.5-minute quadrangle format, digital US Topo maps are designed to look and feel (and perform) like the traditional paper topographic maps for which the USGS is so well known.
US Topo is the next generation of topographic maps from the U.S. Geological Survey (USGS). Arranged in the familiar 7.5-minute quadrangle format, digital US Topo maps are designed to look and feel (and perform) like the traditional paper topographic maps for which the USGS is so well known.
Trans-Alaska Pipeline, northern Brooks Range, Alaska. Rocks in the background produce oil on the North Slope.
Trans-Alaska Pipeline, northern Brooks Range, Alaska. Rocks in the background produce oil on the North Slope.
View south along the Trans Alaska Pipeline in the zone where it was engineered for the Denali fault. The fault trace passes beneath the pipeline between the 2nd and 3rd slider supports at the far end of the zone. A large arc in the pipe can be seen in the pipe on the right, due to shortening of the zigzag-shaped pipeline trace within the fault zone.
View south along the Trans Alaska Pipeline in the zone where it was engineered for the Denali fault. The fault trace passes beneath the pipeline between the 2nd and 3rd slider supports at the far end of the zone. A large arc in the pipe can be seen in the pipe on the right, due to shortening of the zigzag-shaped pipeline trace within the fault zone.
The U.S. Geological Survey (USGS) has been the primary civilian mapping agency of the United States since 1879. Some of the most well-known USGS maps are the 1:24,000-scale topographic maps, also called 7.5-minute quadrangles. In 2009, the USGS transitioned from our hand scribed historical topographic maps to US Topos, which are computer-generated on a regular schedule using national databases...
Historically, USGS topographic maps were made using data from primary sources including direct field observations. Those maps were compiled, drawn, and edited by hand. By today's standards, those traditional methods are very expensive and time-consuming, and the USGS no longer has funding to make maps that way. A new USGS topographic map series was launched in 2009 and branded " US Topo." Though...
Improving boundaries for USGS topographic maps is an ongoing effort. Boundaries have been added to computer-generated US Topo maps (published 2009-present) as digital versions become available: 2009-2010 – The U.S. national boundary was the only boundary shown. 2011 – State and county boundaries added using TIGER/Line data from the U.S. Census Bureau. 2011 – U.S. Forest Service areas added. 2013...
US Topo maps are as accurate as the data sources used to make them, but because these sources are many and varied, it is not possible to make a single simple statement that the map as a whole meets a particular level of accuracy. US Topo maps, therefore, do not have a traditional accuracy statement in the map collar. Accuracy information for individual data sources is included in the metadata file...
US Topo maps are updated on a three-year production cycle (maps covering one third of the country are updated each year). The US Topo production schedule follows the U.S. Department of Agriculture's National Agricultural Imagery Program (NAIP) collection schedule. This does not include US Topos for Alaska, which are on a different schedule. The linework features shown on the maps are generated...
View map indexes on these interactive maps (you must zoom in to see the index lines and map names) : Map Locator on the USGS Store - Click the icon on the left that looks like two pieces of paper and select “1:24,000” for our standard map series. TopoView - Click on any of the round map scale indicators on the right side of the map. The National Map Viewer - Click on the Layer List icon at the top...
Like topographic maps, topographic map symbols have evolved over time. There is no single document that describes all of the symbols used on all USGS topographic maps since they were first created. Maps published 2013-present: US Topo maps have a symbol sheet attached to the map file (PDF format only). Open the PDF file in Adobe Acrobat and click on the paperclip icon. Maps published 1947-2009...
A railroad crossing over the East Branch Penobscot River located at a streamgage 01029500 in Grindstone, Maine
A railroad crossing over the East Branch Penobscot River located at a streamgage 01029500 in Grindstone, Maine
Power lines run along a dirt track through the Morley Nelson Snake River Birds of Prey National Conservation Area in southern Idaho. Power poles are often the tallest structures available for bird perching and nesting in flat landscapes without trees.
Power lines run along a dirt track through the Morley Nelson Snake River Birds of Prey National Conservation Area in southern Idaho. Power poles are often the tallest structures available for bird perching and nesting in flat landscapes without trees.
A scenic view of the Indian Peaks Wilderness Area located in Colorado. The hike begins at the Fourth of July trail-head and guides you to Lake Dorothy, the highest named lake in the Wilderness Area at 12,061 ft ( 3676 m).
A scenic view of the Indian Peaks Wilderness Area located in Colorado. The hike begins at the Fourth of July trail-head and guides you to Lake Dorothy, the highest named lake in the Wilderness Area at 12,061 ft ( 3676 m).
Grant Village boat dock, on the West Thumb of Yellowstone Lake, where a water-level sensor measures the level of the lake. Photo by David Mencin (EarthScope Consortium).
Grant Village boat dock, on the West Thumb of Yellowstone Lake, where a water-level sensor measures the level of the lake. Photo by David Mencin (EarthScope Consortium).
USGS scientists are working alongside University researchers in Alaska to understand how groundwater and permafrost conditions change over time due to seasonal variations and climate change. View down the oil pipeline through one April 2017 study area. (April 2017)
USGS scientists are working alongside University researchers in Alaska to understand how groundwater and permafrost conditions change over time due to seasonal variations and climate change. View down the oil pipeline through one April 2017 study area. (April 2017)
Trail Near Blue Ridge Parkway Near Afton, Virginia
Trail Near Blue Ridge Parkway Near Afton, Virginia
The Cuyahoga Valley National Park stretches along the Cuyahoga River between Cleveland and Akron in Ohio. It preserves the river ecology of the Cuyahoga River as well as historic transportation routes, such as the Cuyahoga Canal Towpath and the Cuyahoga Valley Scenic Railroad.
The Cuyahoga Valley National Park stretches along the Cuyahoga River between Cleveland and Akron in Ohio. It preserves the river ecology of the Cuyahoga River as well as historic transportation routes, such as the Cuyahoga Canal Towpath and the Cuyahoga Valley Scenic Railroad.
US Topo is the next generation of topographic maps from the U.S. Geological Survey (USGS). Arranged in the familiar 7.5-minute quadrangle format, digital US Topo maps are designed to look and feel (and perform) like the traditional paper topographic maps for which the USGS is so well known.
US Topo is the next generation of topographic maps from the U.S. Geological Survey (USGS). Arranged in the familiar 7.5-minute quadrangle format, digital US Topo maps are designed to look and feel (and perform) like the traditional paper topographic maps for which the USGS is so well known.
Trans-Alaska Pipeline, northern Brooks Range, Alaska. Rocks in the background produce oil on the North Slope.
Trans-Alaska Pipeline, northern Brooks Range, Alaska. Rocks in the background produce oil on the North Slope.
View south along the Trans Alaska Pipeline in the zone where it was engineered for the Denali fault. The fault trace passes beneath the pipeline between the 2nd and 3rd slider supports at the far end of the zone. A large arc in the pipe can be seen in the pipe on the right, due to shortening of the zigzag-shaped pipeline trace within the fault zone.
View south along the Trans Alaska Pipeline in the zone where it was engineered for the Denali fault. The fault trace passes beneath the pipeline between the 2nd and 3rd slider supports at the far end of the zone. A large arc in the pipe can be seen in the pipe on the right, due to shortening of the zigzag-shaped pipeline trace within the fault zone.