Where is Big Wall Lake?

Big Wall Lake is a lake in Wright County, Iowa. Its water-quality measurements are published by Iowa DNR and shown on this page as reported.

Are there boat ramps on Big Wall Lake?

Big Wall Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Big Wall Lake Wildlife Area. Public access is listed as yes.

Can I fish at Big Wall Lake?

Big Wall Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Iowa's fish and wildlife agency, so check its current regulations before you go.

Big Wall Lake

Wright County, Iowa384 acresView map Directions

No nutrient or algae sampling on record from Iowa DNR for this lake.

Area

384 acres

Surface area

Shoreline

5.9 mi

Measured length

Impaired · Oxygen depletion (low DO)
Public access

See the measurements Directions Where to stay

Big Wall Lake in Wright County, Iowa has water-quality measurements published by Iowa DNR, shown here as reported. Surface area: 384 acres.

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Big Wall Lake is a 384-acre lake in Wright County, Iowa. Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, Iowa DNR. Methodology: how these readings are compared.

What Big Wall Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Big Wall Lake is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO), pH / acidity. Check local advisories before you swim.

Whether Big Wall Lake is safe to swim in today is a call for the Iowa Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Big Wall Lake

These are the measurements Iowa DNR publishes for Big Wall Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Big Wall Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Surface area

384 acres

Shoreline

5.9 mi

Public access

Yes

Listed by Iowa DNR

No bathymetric survey has been published for Big Wall Lake, so its depth is not documented here.

Recreation & Access

Boat Landings

Yes

Public Access

Big Wall Lake Wildlife AreaPublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

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Stays near Big Wall Lake

Compare lakeside cabins, hotels, and vacation rentals near Big Wall Lake in Wright County, Iowa — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Big Wall Lake

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Fishing Big Wall Lake

→ Big Wall Lake fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Big Wall Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Oxygen depletion (low DO)pH / acidity

Designated uses not supporting: Aquatic life.

Source: EPA ATTAINS assessment unit IA 02-IOW-656 · Official waterbody report

Nearby Lakes in Wright County

Elm Lake10.2 miView →Lake Cornelia2.5 ft clear · Eutrophic12.1 miView →Morse Lake15.3 miView →Briggs Woods Lake1.5 ft clear · Hypereutrophic15 miView →Goose Lake21.1 miView →East Twin Lake22.1 miView →

Frequently asked questions about Big Wall Lake

Where is Big Wall Lake?: Big Wall Lake is a lake in Wright County, Iowa. Its water-quality measurements are published by Iowa DNR and shown on this page as reported.
What is the water quality of Big Wall Lake?: Big Wall Lake in Wright County, Iowa has water-quality measurements published by Iowa DNR, shown here as reported. Surface area: 384 acres.
Is Big Wall Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Big Wall Lake is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO), pH / acidity. Check local advisories before you swim.
Are there boat ramps on Big Wall Lake?: Big Wall Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Big Wall Lake Wildlife Area. Public access is listed as yes.
Can I fish at Big Wall Lake?: Big Wall Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Iowa's fish and wildlife agency, so check its current regulations before you go.