Description: UPDATED: March 17, 2021 with data through the 2020 survey year.This coverage was developed from field surveys conducted on the mainstem and selected tributaries of the Aroostook, Dennys, Ducktap, East Machias, Kennebec, Machias, Passagassawakeag, Penobscot, Pleasant, Presumpscot, Saco, Sheepscot, St. George, Tunk and Union Rivers in Maine by staff of the Maine Dept. of Marine Resources - Division of Sea Run Fisheries and Habitat. These surveys were conducted to identify important Atlantic salmon habitat including spawning and rearing areas. The majority of the survey data was collected using Trimble Pro, Pro-XL and GeoExplorer3 receivers and survey files were differentially corrected to provide 2-5 meter accuracy. Surveys for some reaches were collected with minimal or no GPS control points and the attributes were overlaid on a stream centerline created using either a GPS-acquired line, a line derived from MEGIS/USGS 1:24,000 hydrography data, or a line drawn as a centerline based on MEGIS digital orthophotography. The dataset includes information on habitat categories and areas, and an indication of spawning and rearing potential. This data is referred to as Level 3, or detailed habitat survey data, to be contrasted with the Level 2 habitat data which contains the most detailed data for individual habitat units.
Description: This dataset is a synthesis of expert recommendations from IFW fisheries biologists that identify priority areas for habitat conservation, restoration and protection actions. These data were collected as attributes added to the High Resolution NHD (1:24,000) https://www.usgs.gov/core-science-systems/ngp/national-hydrography/nhdplus-high-resolution
Service Item Id: 6e8fa88cc9c74b21a23d6d5d6aef116c
Copyright Text: Priority stream networks were attributed in GIS by Joshua Royte, Senior Conservation Scientist for The Nature Conservancy in Maine through 8 in-person workshops and 4 follow-up remote workshops and then from edits submitted using an online tool developed by Erik Martin, Freshwater Data Specialist for The Nature Conservancy in Maine. The rank designations were made by the following IF&W Regional Fisheries Biologists: Region A – James Pellerin, Brian Lewis, Nick Kalejs, and Merry Gallagher (Native Fish Conservation Biologist)
Region B – Jason Seiders, Wes Ashe, Scott Davis and Merry Gallagher
Region C – Gregory Burr and Merry Gallagher
Region D – Dave Howatt, Tyler Grant, and Elizabeth Thorndike (note Elizabeth also ranked many subwatersheds with her team and submitted them after the in-person workshop these were edited into the master database by Joshua Royte
Region E – Tim Obrey, Jeff Bagley and Merry Gallagher
Region F – Kevin Dunham, Kevin Gallant, Brian Campbell, and Merry Gallagher
Region G – Frank Frost, Jeremiah Wood, and Derrick Cote
Description: This Undeveloped Habitat Blocks dataset represents areas in Maine that are not currently developed or directly adjacent to current development or roads. The feature class was created from the following data sets:From NLCD_2016 Landcover extractions: 500 ft zone around high intensity development; 375 ft zone around medium intensity development; 250 ft zone around low intensity development; 250 ft zone around barren land (type 31) features that are contiguous with mapped gravel pitsFrom MDOT roads data: 500 ft zone around Class 1 roads (Interstates); 375 ft zone around Class 2 and 3 roads; 250 ft zone around Class 4 roads; Class 5 roads were ignored; 250 ft along E911 private roadsRoad segments along the New Hampshire, Quebec, and New Brunswick borders were added and buffered at 250 feet for continuity.From the Building Footprints and E911 Addresses layers: 250 ft buffer zonesFrom Impervious surface data: The "2007 Imperv" dataset was mosaicked with missing T2 town mosaics for much of York County and areas of the Midcoast. Several gaps in coverage (notably in the Fryeburg area, but in other areas as well) were patched with cut-outs from the 2004 Imperv layer.To help correct the over-representation of minor woods roads in this impervious layer, a buffered (500’) mask of E911 roads was used to extract the corresponding data from the impervious layer. A 250 ft zone was then created around the modified imperv layer elements.These layers were merged, and along with water bodies greater than 10 acres, were excluded from the state's surface area to create the layer.
Service Item Id: 6e8fa88cc9c74b21a23d6d5d6aef116c
Copyright Text: Layer assembly: Bill Hancock, Beginning with Habitat Program, Maine Department of Inland Fisheries and Wildlife. 207-287-5258. September 2020
Description: This data set consists of general soil association units. It was develped by the National Cooperative Soil Survey and supersedes the State Soil Geographic (STATSGO) data set published in 1994. It consists of a broad based inventory of soils and nonsoil areas that occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped. The data set was created by generalizing more detailed soil survey maps. Where more detailed soil survey maps were not available, data on geology, topography, vegetation, and climate were assembled, together with Land Remote Sensing Satellite (LANDSAT) images. Soils of like areas were studied, and the probable classification and extent of the soils were determined. Map unit composition was determined by transecting or sampling areas on the more detailed maps and expanding the data statistically to characterize the whole map unit. This data set consists of georeferenced vector digital data and tabular digital data. The map data were collected in 1-by 2-degree topographic quadrangle units and merged into a seamless national data set. It is distributed in state/territory and national extents. The soil map units are linked to attributes in the National Soil Information System data base which gives the proportionate extent of the component soils and their properties.
Value: Colton gravelly sandy loam, dark materials, 0 to 2 perc ent slopes Label: Colton gravelly sandy loam, dark materials, 0 to 2 perc ent slopes Description: N/A Symbol:
Value: Colton gravelly sandy loam, dark materials, 2 to 8 perc ent slopes Label: Colton gravelly sandy loam, dark materials, 2 to 8 perc ent slopes Description: N/A Symbol:
Value: Colton loamy fine sand, dark materials, 0 to 2 percent slopes Label: Colton loamy fine sand, dark materials, 0 to 2 percent slopes Description: N/A Symbol:
Value: Colton loamy fine sand, dark materials, 2 to 8 percent slopes Label: Colton loamy fine sand, dark materials, 2 to 8 percent slopes Description: N/A Symbol:
ID: Colton gravelly sandy loam, dark materials, 0 to 2 perc ent slopes
Name: Colton gravelly sandy loam, dark materials, 0 to 2 perc ent slopes
Domains:
Templates:
Name: Colton gravelly sandy loam, dark materials, 0 to 2 perc ent slopes
Description:
Prototype:
MUName: Colton gravelly sandy loam, dark materials, 0 to 2 perc ent slopes FARMCLAC: null AREASYMBOL: null MUSYM: null
Drawing Tool: esriFeatureEditToolPolygon
ID: Colton gravelly sandy loam, dark materials, 2 to 8 perc ent slopes
Name: Colton gravelly sandy loam, dark materials, 2 to 8 perc ent slopes
Domains:
Templates:
Name: Colton gravelly sandy loam, dark materials, 2 to 8 perc ent slopes
Description:
Prototype:
MUName: Colton gravelly sandy loam, dark materials, 2 to 8 perc ent slopes FARMCLAC: null AREASYMBOL: null MUSYM: null
Drawing Tool: esriFeatureEditToolPolygon
ID: Colton loamy fine sand, dark materials, 0 to 2 percent slopes
Name: Colton loamy fine sand, dark materials, 0 to 2 percent slopes
Domains:
Templates:
Name: Colton loamy fine sand, dark materials, 0 to 2 percent slopes
Description:
Prototype:
MUName: Colton loamy fine sand, dark materials, 0 to 2 percent slopes FARMCLAC: null AREASYMBOL: null MUSYM: null
Drawing Tool: esriFeatureEditToolPolygon
ID: Colton loamy fine sand, dark materials, 2 to 8 percent slopes
Name: Colton loamy fine sand, dark materials, 2 to 8 percent slopes
Domains:
Templates:
Name: Colton loamy fine sand, dark materials, 2 to 8 percent slopes
Description:
Prototype:
MUName: Colton loamy fine sand, dark materials, 2 to 8 percent slopes FARMCLAC: null AREASYMBOL: null MUSYM: null
Drawing Tool: esriFeatureEditToolPolygon
ID: Dixmont silt loam, 0 to 2 percent slopes
Name: Dixmont silt loam, 0 to 2 percent slopes
Domains:
Description: Surficial_Geology_24K_Aquifers contains polygons of significant aquifers (glacial deposits that are a significant ground water resource) for Maine mapped at a scale 1:24,000, from the Maine Geological Survey. Printed maps published by the Maine Geological Survey on USGS 7.5' quadrangle bases. Aquifer boundaries delineated and digitized by the Maine Geological Survey from data compiled on USGS 7.5' quadrangle bases. Aquifer polygons coded by yield expected from a properly constructed well (using the AQUIFERTYPE field or the field ATYPE = 0 area not mapped as aquifer; ATYPE = 1 10-50 gallons-per-minute; ATYPE = 2 greater than 50 gallons-per-minute; ATYPE = 3 island of non-aquifer material within an area mapped as aquifer).
Service Item Id: 6e8fa88cc9c74b21a23d6d5d6aef116c
Copyright Text: Credit should be given to the data source and/or originator when data is transferred or printed. Source should be cited as: Maine Geological Survey, 93 State House Station, Augusta, ME 04333-0093.
Description: Locations of rare, threatened, and endangered plants in Organized Towns of Maine as mapped by the Maine Natural Areas Program (MNAP), Department of Agriculture, Conservation and Forestry. Data are mapped at 1:24K or larger scale.
Description: Locations of rare and exmplary natural community and ecosystem types in organized towns of Maine as mapped by the Maine Natural Areas Program (MNAP), Department of Agriculture, Conservation and Forestry. Data are mapped at 1:24K or larger scale.
Description: This layer represents Inland Waterfowl / Wading bird Habitat (IWWH), a Significant Wildlife Habitat defined under Maine's Natural Resources Protection Act (NRPA; http://www.maine.gov/dep/blwq/docstand/nrpapage.htm). COMPREHENSIVE REVIEW OF ORGANIZED TOWNS: Boundaries and ratings of all IWWHs in Maine's organized townships were updated in 2008. These updates were based on interpretation of high-resolution aerial imagery captured between 2001 and 2007. These polygons may be identified by the "Iwwh" prefix in the IWWH_ID value or by the date in the Notes field.FIELD ASSESSMENT OF LOW/MODERATE IWWHs: Wetlands that scored near the Moderate minimum rating threshhold are being assessed to confirm their boundaries and ratings. This ongoing effort is proceeding geographically through MDIFW's Regions. Updated polygons may be identified by the Notes field.MDIFW Region A (southern/western Maine): completed and published June 13, 2016. MDIFW Region B (western/mid-coast Maine): completed and published Dec 15, 2017. MDIFW Regions C (downeast), F (northeastern Maine): in progress. Updated polygons are published quarterly.COMPREHENSIVE REVIEW OF UNORGANIZED TOWNS AND UPDATES IN ORGANIZED TOWNS: Boundaries and ratings of all pre-2008 polygons in Maine's unorganized townships are being updated. This effort is part of the field assessment process described above and is proceeding geographically by MDIFW Region. The updates focus on polygons with an IWWH_ID prefixed with "UMO" or "IFW", which indicates pre-2008 mapping. It also includes polygons with a score of 9 or 10 (near the minimum Moderate value threshhold) as described above. Updates are based on interpretation of recent, high-resolution aerial imagery and, when needed, a field assessment. These updates are published quarterly.
Service Item Id: 6e8fa88cc9c74b21a23d6d5d6aef116c
Copyright Text: Maine Department of Inland Fisheries and Wildlife (MDIFW) Wildlife Resource Assessment Section, Habitat Group; MDIFW Wildlife Management Section, Regional staff; Heather L. Rustigian and William B. Krohn, University of Maine, Maine Cooperative Fish and Wildlife Research Unit (for polygons mapped in unorganized townships) .
Description: Mapped habitats based on observations of wildlife species that are Endangered, Threatened, or of Special Concern. This version of MDIFW's ETSC database has been simplified for "Beginning with Habitat" by showing only the most recent observation of the same species in the same habitat. This layer is updated daily. Most updates are additions of new observations. Less frequently, features/attributes are modified or deleted. Updates are more common during non-summer months (i.e., outside the field season). Static copies of this data set should not be kept for more than 1 year and ideally should be replaced monthly..
Service Item Id: 6e8fa88cc9c74b21a23d6d5d6aef116c
Copyright Text: Maine Department of Inland Fisheries and Wildlife
Description: A deer wintering area (DWA) is defined as a forested area used by deer when snow depth in the open/hardwoods exceeds 12 inches, deer sinking depth in the open/hardwoods exceeds 8 inches and mean daily temperatures are below 32 degrees Fahrenheit. Non-forested wetlands, non-stocked clear-cuts, hardwood types, and stands predominated by eastern larch are included within the DWA only if less than 10 acres in size. Agricultural and development areas within DWAs are excluded regardless of size. Evaluation (rating procedure): Deer wintering areas are evaluated based on three criteria: 1) quality of softwood shelter, 2) intensity of deer use, and 3) size. Information on the quality of softwood shelter and intensity of deer use are based on ground survey plots within the final boundary of the DWA being evaluated. The acreage of the DWA is determined after the final outline of the DWA has been drawn. The final rating of the DWA is determined by summing the scores for the three criteria and assigning a rating as follows: high (score of 10-12), moderate (score of 7-9.9) or low (score of 0-6.9). A regional biologist may recommend a rating change with justification and approval by the management section supervisor. This dataset includes DWAs in organized townships that are candidate Significant Wildlife Habitat under Maine's Natural Resources Protection Act as mapped by MDIFW Regional Biologists. Currently all DWAs are rated as indeterminate.
Service Item Id: 6e8fa88cc9c74b21a23d6d5d6aef116c
Copyright Text: Maine Department of Inland Fisheries and Wildlife