township and range land surveying system

Extend 12 miles 6 chains north and 12 miles 6 chains south from these ticks.

The circumference of the earth has decreased as you went northwards, so there will be fewer full ticks than there were one base line south. At the latitude corresponding to this distance from the 49th parallel lay off 6-mile-6-chain ticks westwards from 110th meridian as you did at the 1st base line.

Starting at the 49th parallel (first base line) go 24 miles 12 chains (38.9 km) directly north. This gets you your first set of range lines. Extend these ticks 12 miles 6 chains (19.4 km) due north (following a line of constant longitude) to the first correction line. Start over at the 114th and 118th lines of longitude (5th and 6th DLS meridians).

On it lay off 6-mile-6-chain (9.8 km) ticks westwards starting at the 110th line of longitude (4th DLS meridian). The 49th parallel of latitude is the first base line of the ATS system. Lay off 6-mile-3-chain (9.7 km) ticks from the 49th parallel of latitude to the 60th parallel. How it works Townships in relation with meridians, baselines and correction linesīelow is a brief description of how to lay out the DLS grid for Alberta. The system is also used by provincial governments when selling exploration rights, and oil and gas wells are referenced by their location as defined within the Alberta Township System. In 1910 The Alberta Surveyors Act prescribed the system and the methods whereby land surveys were to be carried out under the general purview of a provincial director of surveys whose responsibility it was to see that all survey work was performed in accordance with the provisions of that Act. Establishing a system of examination for new aspirants to the title of 'Dominion Land Surveyor' was officially adopted in 1874. Long before the Dominion Land Surveyor (DLS) first came into official existence in 1872, licensed surveyors known as provincial land surveyors had been functioning in the Provinces of Ontario and Quebec (then called Canada West and Canada East) under an Act of 1849. The implementation in western Canada reflects a number of slightly different approaches, as well as a large number of errors. In principle there is a mathematical basis for the Alberta Township System (ATS) variant of the Dominion Land Survey (DLS) system as implemented in Canada. The Alberta Township System (ATS) is a land surveying system used in the Canadian province of Alberta and other parts of western Canada.

Township and range land surveying system