University of Guelph Library

University of Guelph Library tag line "Changing Lives, Improving Life" (JPG 10kb)
Click the plus sign to expand this menu item (GIF 61 bytes)Click the minus sign to collapse this menu item (GIF 61 bytes)Geospatial Data Resources
Click the plus sign to expand this menu item (GIF 61 bytes)Click the minus sign to collapse this menu item (GIF 61 bytes)Help & Learning Resources

University of Guelph Library Ask Us! Service button and link to the initiative (PNG 6kb)

Data Resource Centre section title and link to its homepage (PNG – 11kb)

Ontario Ortho Photographs

Text Size: S M L XL

Go back one page (PNG 4 kb)

Provider

Ontario Ministry of Natural Resources from First Base Solutions.

These orthorectified colour air photos of Southern Ontario were provided to the University by the Ontario Ministry of Natural Resources and made possible through a donation from the Ontario Ministry of Education. There are approximately 17,000 images files in the collection and are based on 2002 photography. Use the OrthoIndex to locate and download images.

Coverage

Durham, Halton, Hamilton, Lambton, Niagara, Peel, Simcoe, Toronto, and York. Contact the DRC to order portions of Grey, Simcoe, Kawartha, and Peterborough.

In 2005, these photos were updated and are available in the following MrSid mosaics. Contact the DRC for access — :

  • Durham (12 images)
  • Halton (4 images)
  • Hamilton (3 images)
  • Peel (4 images)
  • Toronto (3 images)
  • York (9 images)

In 2006, the Ontario Ministry of Natural Resources' Southwestern Ontario Orthophotography Project [ SWOOP] created ortho photographs for the rest of Southwestern Ontario.

Creator

First Base Solutions

Scale

1:10000 and 1:20000

Resolution

1 pixel = 20 cm

Format

.SID with georeferencing files (.sdw)

Note: Sarnia files — *.TIF with georeferencing files (.tfw or .tab)

Projection

NAD 1983 UTM Zone 17

Access

To use this data you need to be a member of the University of Guelph Community. If you are accessing this data from off campus please sign in to the Library's system.

Ortho Index

Use the online index to determine which orthophoto you want.

Note: these files are zipped. Download, unzip and add as layers in the mapping software.

If the index map service is unavailable, the orthophotos can be located in the TDR Orthophotos collection (Download site).

Go back one page (PNG 4 kb)

Top

Data Access

Contact

519–824–4120 ext. 56417

Visit

The DRC is located behind the Research Help desk in the McLaughlin Library.

Check DRC help hours

Last updated November 3rd, 2009 by D.B. (details)