Holland Lake
Missoula County, MontanaView mapDirections
Montana DEQ publishes the water-quality measurements for Holland Lake. Here is what has been measured.
- Limited data
Holland Lake in Missoula County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Water clarity: 30.5 ft visibility.
Holland Lake is a lake in Missoula County, Montana. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, Montana DEQ, last sampled 2023-09-16. Methodology: how these readings are compared.
If you are planning to stay, you can search lake houses and cabins around Holland Lake on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.
What Holland Lake is good for
From access and monitoring records, not editorial picks.
- Clear water30.5 ft of visibility
- Camping1 public campground nearby
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Holland Lake is safe to swim in today is a call for the Montana Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Holland Lake
These are the measurements Montana DEQ publishes for Holland Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Crystal clear, you can see 30.5 ft down. TSI 28.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 30.5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 28 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Holland Lake
Answers come straight from the public measurements and survey records on this page.
Recreation & Access
Public campgrounds near Holland Lake
- Owl Creek Cabin2.5 kmReserve
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Stays via Stay22
Stays near Holland Lake
Compare lakeside cabins, hotels, and vacation rentals near Holland Lake in Missoula County, Montana — 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 Holland Lake
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Montana’s top lakes →
Follow Holland Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Holland Lake
Water Quality Trend: Worsening
Based on 12 years of monitoring (2012–2023).
Water clarity
Stable2 years
Phosphorus
Worsening+0.22 µg/L/yr11 years
Chlorophyll-a
Worsening+0.11 µg/L/yr12 years
Nearby Lakes in Missoula County
Frequently asked questions about Holland Lake
Where is Holland Lake?
- Holland Lake is a lake in Missoula County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of Holland Lake?
- Holland Lake in Missoula County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Water clarity: 30.5 ft visibility.
Is Holland Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there campgrounds on Holland Lake?
- Holland Lake has 1 public campground from USGS The National Map within 5 km, including Owl Creek Cabin. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
Explore Holland Lake across LakeQuality
More lakes in Montana
Other Lakes in Montana
Oligotrophic Lakes in Montana
Where this data comes from
6 measurements from 1 monitoring station, 2020–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North American Lake Management Society
NALMS6 samples · 2020–2023
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Public campgrounds from USGS The National Map Structures, within about 3 miles