20210626 01114700 1.0 TRUE NTS Grid 250K This layer represents the National Topographic System Grid 1:250 000 scale outline with National Topographic System Grid 1:250 000 block number labels. This layer is not visible beyond 1:27,733,946. The dataset is produced for the Government of Alberta and is available to the general public. Note that the distribution contact is different for the general public than for Government of Alberta ministries. Please consult the Distribution Information of this metadata for the appropriate contact to acquire this dataset. The National Topographic System of Canada (NTS) is a national mapping reference grid defined by Natural Resources Canada (NRCan) that is based on degrees of latitude and longitude. Starting at the Prime Meridian and at the equator, the 1:250 000 grid is formed by intersecting every degree of the meridians with every two degrees of parallels. Each polygon in the grid is designated with a two digit number and a single letter (Example 83H). The province of Alberta is covered by 45 complete and 17 partially complete 1:250 000 NTS blocks. Copyright Government of Alberta.