Lonetree Reservoir
Lonetree Reservoir in Larimer County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 458 acres.
- Area
- 458 acres
- Public access
- Yes
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Why Lonetree Reservoir has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Lonetree Reservoir, no water-quality sampling on record for this lake.
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by CDPHE and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lonetree Reservoir is a 458-acre lake in Larimer County, Colorado. Limited fish-species data available. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, CDPHE, last sampled recent years. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lonetree Reservoir
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Lonetree Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Lonetree Reservoir in Larimer County, Colorado — 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 Lonetree Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 458 acres |
| Public Access | Yes |
No bathymetric survey has been published for Lonetree Reservoir, so its depth is not documented here.
Recreation & Access
- Lonetree Reservoir State Wildlife AreaPublic
- Lonetree Reservoir State Wildlife AreaPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lonetree Reservoir
Nearby Lakes in Larimer County
Frequently asked questions about Lonetree Reservoir
Where is Lonetree Reservoir?
- Lonetree Reservoir is a lake in Larimer County, Colorado. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Lonetree Reservoir?
- Lonetree Reservoir in Larimer County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 458 acres.
Is Lonetree Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lonetree Reservoir is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Lonetree Reservoir?
- Lonetree Reservoir has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Lonetree Reservoir State Wildlife Area, Lonetree Reservoir State Wildlife Area. Public access is listed as yes.
Explore Lonetree Reservoir across LakeQuality
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Where this data comes from
Measurements for Lonetree Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory