USGS 15' Historical Topographic Maps circa 1910

Identification Information:
Citation Information:
Publication Date: 2010
Title: USGS 15' Historical Topographic Maps circa 1910
Online Linkage:
Abstract: This layer includes the 15', 1:62500 USGS topographic maps for Maine from the late 1800s and early 1900s, ranging from 1891-1935. There are 83 quads in this layer, covering 43% of the state, mostly southern and central Maine and Down East Maine. The maps were scanned from paper copies, georeferenced, and then had the collars clippled and the edges mosaicked. Most maps were scanned originally at 600dpi, either by MEGIS or USGS. All georeferencing of these was done by USGS. A few quads were not either in the collection of Maine or USGS, and in those cases quarter-quads were downloaded from the UNH library web site, those quarters were then georeferenced separately and if needed, rubber-sheeted along seamlines to make the quad. Most of these quads do not indicate land cover (green areas). Note that the source paper maps vary considerably in their paper color, ink contrast, fading, and so forth. The user will see great variation between quads which cannot be made more consistent at this time.
Purpose: Georeferenced topographic maps for State of Maine, 1891-1935
Progress: Complete
Maintenance and Update Frequency: None planned
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -71.1736
East Bounding Coordinate: -66.6911
North Bounding Coordinate: 47.5693
South Bounding Coordinate: 42.9164
Theme Keyword Thesaurus: ISO 19115 Topic Categories
Theme Keyword: imageryBaseMapsEarthCover
Place Keyword Thesaurus: None
Place Keyword: Maine
Access Constraints: None
Use Constraints: None. However, users should be aware that temporal changes may have occurred since this data set was collected and that some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. Acknowledgment of the U.S. Geological Survey would be appreciated for products derived from these data.Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002 and coordinated by MEGIS.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Maine GeoLibrary
Contact Position: GIS Coordinator
Contact Address:
Address Type: unknown
Address: 51 Commerce Dr, 3rd floor
City: Augusta
State or Province: ME
Postal Code: 04330
Country: US
Contact Electronic Mail Address:
Data Set Credit: Maine Office of GIS (MEGIS), US Geological Survey (USGS), University of New Hampshire Library (UNHLIB)
Metadata Reference Information:
Metadata Date: 20190109
Metadata Contact:
Metadata Standard Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: local time