Sauder/Rattlesnake Reservoir
Type: Off Stream
Pick Here For Current Reservoir Level

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General Information

Sauder Reservoir is located approximately 24 km (15 miles) west of Medicine Hat, Alberta on secondary 523. Sauder or Rattlesnake Lake to the locals, has a wide variety of fish species, plenty of fishable water, structure and decent camping facilities. The North East section of this reservoir has deeper sections of water to around 22 m (72 feet) with very distinct edges. The North West section is not as deep with depths to about 8.5 m (28 feet). The campground is located towards the North end of the reservoir and there is a fee charged for camping. As the campground and park are a fairly new development the facilities are not at their full potential, but they do improve every year. There are a few campsites with power and new for 1999 is the addition of showers. The boat launch is located in the campground and launch facilities are excellent but can get busy at times. There is also a fee for launching $3.00 daily or $30.00 season. Several roads surrounding the lake provide other access to the lake, or alternative launching for anglers with smaller boats.


Fishing

Walleye, pike, jumbo perch and an abundance of whitefish can be found almost everywhere in the reservoir, with the North West portion of the lake being the most productive. Fish can be caught in the North East portion of the lake, but heavy boat and personal watercraft traffic can make this more of task during the summer holiday season. Weed growth is not as plentiful, so most weed edges that are found will produce fish. The weed growth combined with submerged and partially submerged islands, makes for plenty of places to fish and plenty of fish to catch. Most walleyes average 2-3 lbs. Anglers have been catching walleye on this reservoir for many years, so there is a good possibility of hooking one much larger. Large Northern pike are also not uncommon. The Walleye fishery on Sauder/Rattlesnake is in the "Vulnerable" category. Anglers are not allowed to keep fish under 50 cm and are limited to 3 fish/day.   


Walleye Stocking History

1974 - 200,000 eyed eggs
1976 - 150,000 eyed eggs
1978 - 75,000 eyed eggs

Note: Sauder reservoir is towards the end of the St Mary irrigation system and could have had walleye introduced from upstream reservoirs.


Reservoir History and Data

-Contours and Reservoir Map-

-Contours and Reservoir Map (New PDF - 841 KB)

Surface area:
152 hectares - 375 acres - 1.5 square kilometres - 0.59 square miles.

Shoreline Length:
16.4 kilometres - 10.2 miles

Reservoir Length and Width:
Length: 7.1 kilometres - 4.4 miles
Width Max: 0.5 kilometres - 0.3 miles
Mean Width: 0.21 kilometres - 0.13 miles

Maximum Depth:
22 metres - 72 feet

Elevation:
794 metres - 2,604 feet
Date of Impoundment: 1953