Chapter 19: Legal Issues and Law Enforcement
Vertical air photos record situations that exist at a specific time and are particularly useful in recording changes if a sequence of photos of the same area exists. Property boundaries are difficult to define if they fall along a naturally changing feature such as a river channel. Three examples illustrate the legal problems that can arise.
Rivers have traditionally been used as boundaries between various administrative units: municipalities, counties, provinces, states, and even countries. However, they are unsatisfactory administrative boundaries because they change position over time resulting in ownership disputes.
19.11: Land Dispute on the Banks of the Assiniboine River, Southwest of Portage la Prairie, Map of Land Divisions, 1875
Figure 19.11 is a map showing land divisions established in 1875 along the Assiniboine River in the area of the land dispute. A farmer bought land in this area in 1961 based on a plan filed in 1875. In the years following the survey, land was accreted by deposition on the inside of the river bend.
The area of the land dispute is shaded.