These images are at a scale of 1:24,000, datum of NAD27
, UTM Zone 15, with the latest available editions used.
3 - UTM Coordinates given as NAD27
for Canada, Zone 21 projection
The permit file locations were expressed in either stateplane or latitude/longitude coordinates, using the NAD27
For digital submissions, OPS requires use of real world coordinate systems based on NAD83 or NAD27
in a UTM of State Plane projection measured in feet of meters.