Maps of the Oldman River

Maps are probably the best way to gain insight to the spatial distribution of phenomenon in a particular area of interests. In this case we are interested in studying the phenomenon of the Oldman River. Things you should particularly notice by studying these scanned in maps are  (1) The the current drainage of the Oldman River is roughly southwest to northeast. (2) The headwaters of the Oldman River is the Three Rivers Gap and that the Oldman River is a tributary to South Saskatchewan River (3) the shear amount of large scale irrigation canals flowing out of the river (4) geological phenomenon and (5) things that interest you as the partaker of this virtual field trip; these interests may be ecology, geology, geography of settlement- whatever.

To Navigate through this page, read the topics listed, keep in mind the phenomenon that I have brought to attention in the brief geographical descriptions of these  locations. THEN visit the (Click here for map) link to visit the maps.

1. The Oldman River at Lethbridge (Courtesy of Department of Mines and Resources Canada)
Notice the where the St. Mary's flows into the Oldman River just south of Lethbridge. Also notice how the river flows southeast just west of  Lethbridge and then in a "horseshoe turn" flows directly north through Lethbridge. Have a close look at the Lethbridge region of the Oldman River, can you see the dense Cottonwood forests (in green) which line our river bottoms? Notice the proximity of the contour lines on the edges of the Oldman River, this is a good indicator that the river banks have quite a steep gradient. Scale is 1:250,000 (in original unscanned map).
(Click here for map)

               2. The Oldman River at Fort MacLeod (Courtesy of Mines and Resources Canada)

 Notice that there are two major tributaries in this region of the Oldman River. The first, and one of the major tributaries of Oldman River, is the Belly River, which reaches the Oldman River almost due east from Fort MacLeod. The second noticeable tributary in this region is Willow Creek reaching the Oldman just north and east of Fort MacLeod. Take special notice of the large irrigation canal directly north of Ft. MacLeod. Scale is 1: 250,000 (in original unscanned map). Clcik on second map for location of the Oldman River Dam. Scale is 1: 250,000 (in original unscanned map)
(Click here for map) (Click here for map II)

           3. The Oldman River, Three Rivers Gap (Courtesy of Mines and Resources Canada)

Notice here that the topography of the region is getting more gradiated, in other words, steeper. You can determine the elevation and steepness of this region by looking closely at the brown contour lines, as the lines get more dense, or closer in proximity, this tells us that an area is very steep with great changes in elevation (picture). Notice here that the Oldman River is formed from three creeks, in the upper left of the scanned map. These three creeks, Hidden Creek, Dutch Creek, and Racehorse Creek come form in the Livingstone Range of the Rocky Mountains, which are almost on the border of British Columbia. The three creeks merge into the Oldman River, in what locals call the "Three Rivers Gap" (Picture of Livingstone Ranges)Scale is 1: 250,000 (in original unscanned map).
(Click here for map)   -  Look in upper left corner of scanned map for Three River Gap

Maps: Mines, Energy and Resources Canada
Lethbridge region, 1992