High Resolution Land Cover

This page shows the specification of data requirements and submission instructions for i-Tree to be able to use your data.

Current High Resolution Areas

Map of HiRes locations.
Click map to expand.
Current list of areas with HiRes data [ click to expand ]
State Municipality/County Year Source
CT Bridgeport 2010 Urban Tree Canopy Assessment
CT Hartford 2008 Urban Tree Canopy Assessment
CT New Haven 2008 Urban Tree Canopy Assessment
DC Washington 2014 Chesapeake Conservancy
DE All 2014 Urban Tree Canopy Assessment
GA Chatham County 2013 Plan-It Geo
IA Complete State 2009 Iowa Department of Natural Resources
IL Chicago 2010 Urban Tree Canopy Assessment
MA Cambridge 2010 Urban Tree Canopy Assessment
MA Chelsea 2010 Urban Tree Canopy Assessment
MA Lawrence 2008 Urban Tree Canopy Assessment
MD All 2014 Chesapeake Conservancy
NC Mecklenburg County 2012 Urban Tree Canopy Assessment
NJ Newark 2010 Urban Tree Canopy Assessment
NY Bronx County 2010 Urban Tree Canopy Assessment
NY Kings County 2010 Urban Tree Canopy Assessment
NY New York County 2010 Urban Tree Canopy Assessment
NY Queens County 2010 Urban Tree Canopy Assessment
Ny Richmond County 2010 Urban Tree Canopy Assessment
NY South-Central 2014 Chesapeake Conservancy
NY Sullivan County Area 2010 Urban Tree Canopy Assessment
OH Cuyahoga County 2010 Urban Tree Canopy Assessment
PA Allegheny County 2010 Urban Tree Canopy Assessment
PA East-Central 2014 Urban Tree Canopy Assessment
RI Pawtucket 2009 Urban Tree Canopy Assessment
TX Denton 2014 Plan-it Geo
VA North-Central 2014 WorldView Solutions Inc.
VT Burlington 2004 Urban Tree Canopy Assessment
VT Montpelier 2009 Urban Tree Canopy Assessment
VT South Burlington 2010 Urban Tree Canopy Assessment
WI Madison 2013 Wisconsin Department of Natural Resources
WV Eastern 2014 Chesapeake Conservancy

Submitting High Resolution

Data Specification

All items below are required.

  1. Contact Information - Name, organization, phone, email.
    • Technical Contact Information if not same as above (ie. the dataset creator or spatial data manager).
  2. Metadata - Provide a basic description of your dataset. Coverage extent, who made it, when was it made, and generally how it was made (LiDAR, air photo interpretation, field measurements, etc.)
  3. Resolution - 10m or better
  4. Data Type - img, tif, grid, gdb - anything that can be loaded in ArcGIS
  5. Projection - Must be defined, any standard projection is acceptable.
  6. Pixel Type - integer
  7. Submit only one dataset for an area. We will not analyze or display overlapping data.
  8. Cover Classes - Each pixel should be given a value between 0 and 9, with each value corresponding to the following cover types:
    • (1) Tree Canopy
    • (2) Grass/Shrub
    • (3) Bare Earth
    • (4) Water
    • (5) Buildings
    • (6) Roads
    • (7) Other Paved
    • (8) Agriculture
    • (9) Wetland
    • (0) Other (this can be used to represent any cover type that does not fit into any of the above categories)

Submission Notes

  1. Data submissions must have > 90% accuracy. We reserve the right to reject any data submission that does not meet our accuracy standards. If an accuracy assessment of the data has been completed, please include this in your data submission.
  2. We will not process and display multiple datasets for a single location. However, a data submission may replace an existing high-resolution layer in the application if it is newer and/or more accurate. This decision will be at the discretion of the i-Tree team.
  3. The data does not need to include all of the cover classes defined in #8 above.
    • For example, you may have only Canopy, Grass, Buildings, and Roads in your dataset.
  4. If you need to crosswalk or map your cover classes to fit in these classes, make note of this in the metadata.
    • For example, your data may not have Buildings, Roads, and Other Paved as specified above, but you might have “Impervious”. In this case, you could match, or crosswalk, your Impervious class to Other Paved.
  5. High-resolution analysis data will be included for the boundary layers if there is complete or near-complete (99% or more) coverage of the polygon.
    • For example, if your UTC study covers your city, but also extends slightly into an adjacent city, watershed, National Park, county, etc. we will exclude your UTC data from said adjacent city, watershed, National Park, county, etc.

Submission Instructions

Please submit data electronically or via mail to:

Public Domain Notice

By submitting data (including maps, map data, written materials, or any other information or materials) for use by i-Tree, you agree to and affirm the following Public Domain Notice:

All material submitted to i-Tree will be in the public domain as soon as it is posted to i-Tree and may be reproduced or copied by anyone without permission from the USDA Forest Service.

No copyright privileges are attached to any work of the federal government per 17 U.S.C. 105, including USDA Forest Service, and USDA Forest Service creative products can be used by anyone in whatever way they choose.

If you contribute to Forest Service projects, understand that those contributions will be in the public domain. USDA Forest Service will not be checking any materials submitted to USDA Forest Service for copyright or other restrictions.

USDA Forest Service assumes no liability for posting of any materials submitted to USDA Forest Service for posting on i-Tree.

DO NOT SUBMIT COPYRIGHTED MATERIAL OR ANY OTHER MATERIALS WITH ANY USAGE RESTRICTIONS OR CONSIDERATIONS THAT YOU DO NOT HAVE PERMISSION TO RELEASE INTO THE PUBLIC DOMAIN.