A range road in Canada is a road that runs north–south along a range grid line of the Dominion Land Survey. Range roads (Rge. Rd.) are perpendicular to township roads (Twp. Rd.) which run east–west along the township grid lines. Western Canada In western Canada (especially rural areas in most municipal districts in Alberta), a range road (abbreviated "Rge. Rd.") is a road running on a north–south parallel to a range line (a line denoting the east and west boundaries of a × 6-mile legal township in the Dominion Land Survey and Alberta Township land surveying systems). Alberta Range roads are commonly numbered in increments west from the east range line of a given township. The range roads form the east and west boundaries (known as section lines) of the 1 mile × 1 mile square sections 36 of which comprise a township (e.g. Range Road 12-2 is between the second and third sections west of Range line 12, Range Road 6-0 is on range line 6). In many municipal districts, the dash between the range line number and the section line number is eliminated (Range Road 15-1 (151) might be called "Range Road one-fifty-one"). Where a road is offset from a section line, it is often appended with a letter (Range Road 11-1A is just west of the first section line west of Range line 11). This system is useful for finding farmsteads (assuming one knows the legal address of the parcel). Range roads are perpendicular to township roads (abbreviated Twp. Rd.). In Foothills County, the range and township road naming system has been replaced with a more conventional "street/avenue" numbering scheme. Range roads are streets numbered west and east of the Fifth Meridian (Meridian Street) in increments of 16 streets to the mile. Township roads are avenues numbered on a similar grid to the city of Calgary (the boundary lies between 190th and 220th Avenue) and extends out to 722nd Avenue. This system causes confusion at the southern boundary of Calgary, as streets in Calgary are numbered east and west of Centre Street, which is some distance west of the Fifth Meridian. Therefore, street numbers change as one crosses Calgary's southern boundary. Saskatchewan In Saskatchewan there are both township and range roads. The numbers of the range roads help to establish the location of the roads as they exist with relation to the legal land description survey system.