Land Information Ontario (LIO) Topographic Data Cache

The LIO Topographic Data Cache is a collection of topographic data built using a series of pre-drawn maps. The maps are compressed for fast, seamless display at predefined scales.

The topographic data includes constructed and natural features that make up Ontario’s landscape.

The cache provides limited data from areas outside Ontario’s boundaries, such as the United States and adjacent provinces and territories.

Technical information

The cache is updated every year, but the contributing data layers may have different maintenance and update cycles.

Some cache layers have been processed in a way that makes it easier for them to be displayed in a mapping product. Other layers are unchanged from the authoritative data.

The cartographic symbology used in the data cache is intentionally muted to allow users to showcase their data.

The LIO Topographic Data Cache is created from many source datasets as described in the LIO Topographic Data Cache user guide. If you are interested in obtaining this authoritative data, you can download it from Land Information Ontario.

Contact LIO Support at to get a copy of the cache for use in mapping applications.

For more information

Provincial Mapping Unit  |


Data Available

The data described here is available for you to use. [Learn more]
[See the licence for how you're allowed to use this data.]

Covers 1978-01-01 - 2020-07-20

Supporting Files

Additional Info

Field Value
Geographic coverage Ontario
Geography Breakdown None
Source URL/Address
Maintainer Provincial Mapping Unit
Author Email
Maintainer branch Provincial Mapping Unit
Last Validated Date 2021-02-10
Update frequency Yearly
Access instructions