Big Ok Lake, British Columbia

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Big Ok Lake
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Location: From Kamloops travel west on the Trans Canada Hwy (#l) for ll.4 km. (7.l miles) and then turn south onto the Coquihalla Hwy (#5). Take exit 336 (about 37.5 km/23.3 miles) off highway 5 and turn right (west) onto Meadow Lake road passing through the community of Logan Lake. Travel straight at the intersection of Hwy 97c passing by the Highland Valley Copper mine and the Tailings pond. Turn left onto the Laura Lake road at the intersection with Landon road. The pavement ends here and from this point on the road passes through Highland Valley Copper mine property. (The junction of Big OK (Island) and Calling Lake are well marked from this point on). Travel 4.2 kms. (2.6 miles) on the Laura Lake road staying straight while passing along the lower end of the Tailing pond dam. Follow the Highland Valley Copper mine signs and at l8.4 km (ll.4 miles) turn right. At 20.4 km (l2.6 miles) turn right and at 20.5 km (l2.7 miles) you will arrive at the BCFS campsite on the north end of Big OK Lake.

Size 34.1 ha. (84.2 ac.) Shoal 33 ha. (81.5 ac.)
Mean Depth Data not Available Max. Depth 12.2 m. (40 ft.)
Game Fish Rainbow Trout Fish Stocked Rainbow Trout
Angler Usage Moderate Elevation 1524 m. (4999 ft.)
Ice Over November to late May T.D.S. 125 mg/L

Resorts & Campsites: No resorts but there is a 25 vehicle BCFS campsite with cartop boat launch located on the north shore and one rustic campsite is located on the southeast corner. This is not accessible to motorhomes or trailers - a truck is recommended.

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Fishing Report: Managed as a quality lake Big OK produces rainbows 3lbs and larger, by larger is meant that 8lbs and up is not unheard of in this lake. Huge chironamid, mayflies and sedge hatches along good populations of fresh water shrimp ensure these trout get enough food to grow big. This is an artificial fly only catch and release fishery. Best times for fishing are spring and fall. If you're a fly fisherman and are looking for trophy rainbow, Big OK is the lake you might be looking for.
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Viewscape: Big OK is a manmade lake situated on the Thompson Plateau. Forests consists mainly of Engelmann spruce and lodgepole pine interspersed with small amounts of common juniper, alder, willow and poplar. Slopes around Big OK vary widely from 5% at the outlet to a maximum of 25% on the southwest end. An earthen dam makes up most of the southwest end. Water is only able to pass over the overflow on the west side of the dam at high water.

Shoreline: Surrounded by a l0 meter (32.8 ft) wide band of deciduous growth, composed of alder and willow which gives way to a coniferous forest. Along the shoreline many stumps and boulders can be found along with a band of sedge ranging from 5-l0 meters (l6-33 ft) in width. Aquatic plants include chara and potamogeton. The lake bottom is composed of organics over cobble. The mid-lake area and the east shore is made up of a large sunken island averaging l.8m (5.9 ft) in depth, dropping away to l2.2 m (40ft) on the south end of the lake. The northwest and northeast corners contain pockets of deep water.

Nearby Lakes

See Calling Lake

Note: Always check your current BC Fishing regulations before you start fishing a new lake.


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Big Ok Lake, British Columbia