Little Portage Lake
Cass County, Minnesota, near Pontoria. DNR lake ID 11023600.
Little Portage Lake is a 44-acre lake in Cass County, Minnesota, near Pontoria. Its deepest point reaches 59 ft. Summer water clarity averages 15.9 feet in Minnesota Pollution Control Agency monitoring, which places it in the oligotrophic nutrient class. It is not on the DNR infested waters list as of September 2026.
Buying or selling on Little Portage Lake? Ask us what lakeshore here actually sells for, which stretches of shoreline buyers compete for, and what’s coming up before it’s listed.
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Quick facts
| DNR lake ID | 11023600 |
|---|---|
| County | Cass County, near Pontoria |
| Surface area | 44 acres |
| Maximum depth | 59 ft |
| Share under 15 ft | Not surveyed |
| Water clarity (summer) | 15.9 ft through 2025 |
| Phosphorus (summer) | 11.6 µg/L |
| Algae, chlorophyll-a (summer) | 3.0 µg/L |
| Nutrient class | Oligotrophic |
| Clarity trend | Steady (2016 to 2025) |
| Invasive species | Not on DNR infested waters list (Sept 2026) |
| Public water accesses | 0 |
Water quality
Summer averages from Minnesota Pollution Control Agency monitoring through 2025: clarity 15.9 ft, phosphorus 11.6 µg/L, algae (chlorophyll-a) 3.0 µg/L. Using the Carlson trophic state index, Little Portage Lake rates as oligotrophic. Summer clarity trend 2016 to 2025: steady.
Fishing regulations
No lake-specific regulation found in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Regulations change. Confirm with the DNR before fishing.
Invasive species
Not on the Minnesota DNR infested waters list as of September 2026. That means no confirmed listing, not a guarantee the lake is free of invasive species.
Public boat access
No public water access on DNR record.
Nearby lakes
- Deep Portage Lake 0.5 mi, Cass County
- Long Lake 1.6 mi, Cass County
- Big Portage Lake 2.2 mi, Cass County
- Sylvan Lake 2.2 mi, Cass County
- Ponto Lake 2.3 mi, Cass County
- Big Deep Lake 2.3 mi, Cass County
- One Lake 2.7 mi, Cass County
- Sand Lake 2.8 mi, Cass County
Questions about Little Portage Lake
How deep is Little Portage Lake?
Little Portage Lake reaches a maximum depth of 59 ft according to Minnesota DNR records.
How big is Little Portage Lake?
Little Portage Lake covers about 44 acres in Cass County, Minnesota.
How clear is Little Portage Lake?
Summer water clarity on Little Portage Lake averages 15.9 feet (Secchi depth) in MPCA monitoring through 2025. Its trophic state is oligotrophic.
Does Little Portage Lake have zebra mussels or other invasive species?
Little Portage Lake is not on the Minnesota DNR infested waters list as of September 2026. That means there is no confirmed listing; it is not a guarantee the lake is free of invasive species.
Are there lake homes for sale on Little Portage Lake?
Homes on Little Portage Lake come up for sale throughout the year, and some sell before they’re ever publicly advertised. Tell us what you’re looking for and our agents will run a custom search and send you matching homes on Little Portage Lake and nearby lakes, including off-market opportunities when available.
What is it like to live on Little Portage Lake?
Small, quiet water suited to paddling and fishing, and summer clarity around 15.9 feet. Conditions vary by property, so walk the frontage and ask us what similar homes have sold for.
Are there special fishing regulations on Little Portage Lake?
No lake-specific regulation was found for Little Portage Lake in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Ask us about Little Portage Lake
Whether you’re buying, selling, or just curious, our team works Cass County lakes every day. Send us a note or call (218) 656-6469.
Sources: Minnesota DNR LakeFinder records, DNR fish surveys (latest not on record), DNR infested waters list (Sept 2026), Minnesota Rules 6264.0400 (April 2026), MPCA monitoring via the Water Quality Portal, DNR water access records (2023), LAGOS-US. Lakewide information from public data; it does not describe any specific property. Verify shoreline, bottom type, and depth at any frontage.