Lake Minnewanka

Alberta
Canada

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Submitted By:
Bryan Heit

Submitter Comments:
Lake Minniwanka has been dammed 3 times in its history. The most recent dam, built in 1941, flooded the 1912 dam site, as well as an old bridge and town. Both of these sites are located a short distance away from the newest dam. The remnants of an old bridge can be found near the stairs located at the south end of the dam. Swim due east from the plaque on shore. Not much remains of the dam, aside from a few pilings and the bank heads. Depth is 15m(50') at the top, and 24m (80') at the bottom. The dam, pump house, and foundations of some support buildings can be found north of the bridge. The easiest way to find these objects is to park mid-way along the dam, and swim out at an ~60 degree bearing from the #12 sign. This should put you on the dam. If you find yourself in a valley turn to the right (60 degrees usually puts you a little north of the dam), and follow the valley to the dam. The damn itself contains a pump house, which you can swim through. The dam is completely intact, consists of both a concrete dam and wood/rock coffer, and is quite interesting to look at. Dam is usually at 18m (60') at the top and 27m (90') at the bottom. North of the dam are several other things you can look for - the foundations of several old support buildings, a well, an old row-boat, and other artifacts can be found in this region. Water is usually around 18m (60') here. There is also a complete town site located mid-lake. Some divers scooter from shore to this site, but for most divers it is out of reach unless they have a boat. Rumor has it that there is also an old ranger station/dock accessible from shore, although I have never seen the location of that site listed. Lastly, located east of the picnic area are a series of cliffs. Enter at the gravel bay, swim around the point, and follow the cliffs north. Often fish can be spotted here, and its a great place to look for fishing lures/gear. Depths to 21m/70'. Because this is a dammed lake the water levels can vary greatly. The depths listed here are the usual, although they can be up to 3m/10' deeper, and as much as 10m/30' shallower. Vis varies greatly - from >10m/30' in winter/spring, to as little as 15cm/6" during the worst of the run-off. The dam site is located in a protected area, but you should fly a flag if diving the cliffs or bridge. Lots of people fish of the gear - keep an eye out. This site is at 1500m/5000' above sea level - altitude tables are required.

Directions:
 From the town of Banff take Banff Ave out of town, and follow it to Lake Minnewanka. There are three shore-accessible dive sites. For the bridge site, park at the stairs located on the south end of the dam. For the 1912 dam/foundations park mid-way along the dam, near the bend/#12 sign. The third site is the cliffs - park at the main parking lot and lug your gear to the picnic area.


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Diver Reviews:    Click here to write a Site Review, and share any new information about this site!

01/13/2007 Cam Steel (Avg: 2.30 Review) - This is a great dive for intermediate to advanced divers. Absolutely awesome experiences on the old dam site. If you're in Alberta any time soon it is an awesome spot to hit.

08/02/2005 Bryan Heit (Avg: 2.04 Review) - Probably the best dive site in Alberta. For newbies the multiple dive sites, and submerged buildings, makes this a lot more interesting then the other local sites. For more advanced divers, Lake Minnewanka offers some of the provinces only deep water dives. Not a whole lot of life to see here, aside from the odd skittish lake trout. But the submerged buildings make it interesting none-the-less. Best dived in early spring or early winter (i.e. before runoff, or immediately before the freeze). It's also a popular place for ice divers throughout winter. During these "peak" seasons (i.e. when normal people stay home) vis can be up to 15m/50'. After runoff vis can drop to just a foot or so. Risks are minimal - the dam and associated foundations are all inside of a protected area where boats are not allowed. However, the bridge, cliffs and town sites are located in places where power boats can go, so fly a flag (not that any one here knows what they mean). Lastly, this is a mountain lake. Wet suit divers will have limited bottom time before they start to freeze, and the cold has been known to drive the odd dry suit diver our of the water. Finally, the lake is at 5000' altitude, so you need to use an altitude table or altitude compatible computer.


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Diver Averages for  Lake Minnewanka  (1=worst, 5=best)


Average Site Condition

Ease of Shore Entry:  2.00
Bottom Conditions:  2.50
Reef Conditions:  2.00
Animal Life:  1.00
Plant Life:  1.50
Facilities:  4.00
Solitude 3.50
Roads:  4.00
*Site Average:  2.17
   

Average Enjoyment Level

Snorkel:  1.00
Beginner Scuba:  3.00
Intermediate Scuba:  3.50
Advanced Scuba:  4.00
Night diving Scuba:  3.00

Number of reviews for this site: 2

1585-3-4-1


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