Lake Mary
Lake Mary in Mono County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 109 acres.
- Area
- 109 acres
- Public access
- Yes
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Why Lake Mary 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 Lake Mary, 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 your state environmental agency and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Mary is a 109-acre lake in Mono County, California. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Lake Mary water quality
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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 Lake Mary
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 Lake Mary
Compare lakeside cabins, hotels, and vacation rentals near Lake Mary in Mono County, California — 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 Lake Mary
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 109 acres |
| Public Access | Yes |
No bathymetric survey has been published for Lake Mary, so its depth is not documented here.
Recreation & Access
- Lake MaryPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Mary
Nearby Lakes in Mono County
Frequently asked questions about Lake Mary
Where is Lake Mary?
- Lake Mary is a lake in Mono County, California. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Lake Mary?
- Lake Mary in Mono County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 109 acres.
Is Lake Mary safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Mary 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 Lake Mary?
- Lake Mary has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Mary. Public access is listed as yes.
Explore Lake Mary across LakeQuality
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Where this data comes from
Measurements for Lake Mary 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