Upper Beverley Lake

Where Upper Beverley Lake is

Upper Beverley Lake lies in the United Counties of Leeds and Grenville, with shoreline in the Township of Rideau Lakes and the Township of Leeds and the Thousand Islands.

How deep is Upper Beverley Lake?

The deepest mapped contour on Upper Beverley Lake is 6.1 meters, and the water within that boundary descends even farther. Ontario’s bathymetry record holds 8 depth contours for Upper Beverley Lake.

See also Ontario's Largest and Deepest Lakes

Surveyed Depths

Ontario has surveyed the depths of several thousand of its lakes over more than half a century. Later surveys were conducted by boat with satellite positioning and produced hundreds of thousands of soundings per lake. Earlier surveys were charted by running transects across the water and drawing depth contours by hand.

Water quality

Ontario’s Lake Partner Program is a volunteer monitoring network. Participants collect water samples for phosphorus analysis and measure water clarity through the summer with a Secchi disk. Most sites are sampled for phosphorus once a year, in spring, and some several times a year between spring and fall. Phosphorus in many lakes rises through the summer, so the two kinds of average are measured on different bases.

Phosphorus is the nutrient that controls how much algae a lake can grow. A lake with little phosphorus stays clear and supports cold-water fish such as lake trout. As phosphorus rises, algae increase, the water clouds, and oxygen in the deep water falls as the algae decay. The province classifies each monitoring site by its average phosphorus:

• Oligotrophic, below 10 micrograms per litre: clear water and low algae.
• Mesotrophic, from 10 to 20: moderately productive water, with more algae and weed growth than an oligotrophic lake but rarely a bloom.
• Eutrophic, above 20: nutrient-rich water, prone to algal blooms and low oxygen at depth.

Upper Beverley Lake has 4 Lake Partner monitoring sites. Two have reported phosphorus for the three or more years the province requires before a status is assigned. All are classified mesotrophic.

The longest record is held by site 7027/1 at Outlet, with phosphorus sampled several times a year over 10 years to 2011. Its long-term mean phosphorus concentration is 18.71 micrograms per litre, within the mesotrophic band, which runs from 10 to 20.

A Secchi disk is a white or black-and-white plate lowered on a marked line until it disappears from view. The depth at which it vanishes is the Secchi depth, a direct measure of water clarity. Clearer water gives a deeper reading.

The 75 clarity readings at site 7027/1 give a median Secchi depth of 2.7 meters.

Median Secchi depth by year at site 7027/1

See also Lake Water Quality and Blue-Green Algae in Ontario

Upper Beverley Lake Weather

The weather page for Upper Beverley Lake carries the forecast over the water, wave heights across the lake, and the modelled water temperature.

Upper Beverley Lake weather

Water temperature

No provincial monitoring station records water temperature on Upper Beverley Lake. The LastLake model computes the temperature of its surface water for each day from the daily mean air temperature at Environment Canada’s Brockville Climate climate station, 27 kilometers from the lake, or the next nearest station when its record is incomplete, and from the lake’s area of 602 hectares and its mean depth of 2.4 meters.

Each day’s figure carries the model’s typical error for that month on lakes of the same size. The figure in the chart below is the temperature near the surface, away from the shoreline. Bays, shallows and water deeper below the surface differ in temperature. Temperature is not measured when ice covers the lake. The weather page for Upper Beverley Lake carries the model’s figures for the past weeks and the coming week.

See also Lake Water Temperature in Ontario

Fish in Upper Beverley Lake

Ontario’s aquatic resource records name 15 fish species in Upper Beverley Lake.

Popular species in the province’s records

• Northern Pikepike
• Yellow Perchperch
• Smallmouth Basssunfish
• Largemouth Basssunfish
• Black Crappiesunfish
• Rock Basssunfish
• Pumpkinseedsunfish
• Bluegillsunfish
• Brown Bullheadcatfish

Spawning areas

Ontario maps 42 fish spawning records within the Upper Beverley Lake outline, for three different species, and all of them are mapped below. Every record is recorded as verified and presently suitable, and none is classed as sensitive.

By number of records

By area mapped

• Northern Pike20 areas8.7 ha
• Largemouth Bass17 areas5.9 ha
• Yellow Perch5 areas2.9 ha

The federal Fisheries Act prohibits the harmful alteration, disruption or destruction of fish habitat without an authorization, so a dock, dredging, infill or shoreline work at a mapped spawning area is reviewed on that basis.

Stocking history

Ontario’s stocking records for Upper Beverley Lake run from 1954 to 1978 and hold 18 releases. Largemouth Bass account for most of the fish: 35,200 released in sixteen of the years between 1954 and 1978. The last recorded release was 2,000 largemouth bass frys in 1978.

The province’s record of stocking for recreational fishing, kept from 2016, lists no release into Upper Beverley Lake.

Fisheries Management Zone 18

Upper Beverley Lake lies in Fisheries Management Zone 18. Ontario sets its fishing seasons and catch limits by zone.

Fisheries management zones around Upper Beverley Lake

See also Fishing Seasons in Ontario, Zone by Zone and Fish Stocking in Ontario Lakes

Upper Beverley Lake Ice Fishing

An ice hut on Upper Beverley Lake must be removed by March 15. The province sets dates for ice hut removal as a safety measure to ensure huts are removed before thawing occurs. One date applies to an entire fisheries management zone (FMZ). Upper Beverley Lake lies within FMZ 18.

An ice hut must also be removed before the ice breaks up, whether or not that date has passed. The deadline clears huts from the ice ahead of the thaw and does not close the fishing season.

Registration is required in FMZ 18 for an ice hut built of anything other than fabric, and for a fabric tent covering seven square meters or more. Registration is free, and the number is displayed on the outside of the hut.

Ice conditions

No public record reports the thickness or the condition of the ice on Upper Beverley Lake on any given day. Ontario publishes ice safety guidance for anyone going out on the ice, at ontario.ca.

See also Lake Ice in Ontario and When the Lakes Will Freeze This Winter

Islands and names

Upper Beverley Lake contains 31 islands in the Ontario Hydro Network’s outline, zero of them over 10 hectares and twelve under a tenth of a hectare. Thirteen of them lie mostly inside wetland the province’s Wetland With Significance dataset maps as marsh. The largest of these, at 5.4 hectares, falls inside the Upper Beverly Lake Wetland.

Official names

Ontario’s geographic names register lists 1 official name on the water and its islands: one point on an island. A further 1 named point stands on the mainland shore.

Points on the shore 1

• Fox Point

Nearby lakes

• Red Horse Lake9 km away
• Charleston Lake11 km away
• Sand Lake15 km away
• Whitefish Lake16 km away

All lakes

Questions about Upper Beverley Lake

• How deep is Upper Beverley Lake?

  Its deepest charted contour is 6.1 meters, and the water within it is deeper.

• How big is Upper Beverley Lake?

  Its surface covers 6.0 square kilometers and it holds 31 islands. Of its 34 kilometers of shoreline, 25 kilometers is the mainland shore and 9 kilometers is the shore of the islands.

• What fish are in Upper Beverley Lake?

  Ontario’s aquatic resource records name fifteen species, among them smallmouth bass, largemouth bass, northern pike, yellow perch and black crappie.

• Is the water clear?

  All two monitoring sites with a phosphorus status are classified mesotrophic, the middle of the province’s three bands.