Robinson Lake; Deep Basin; Iron River Township
Robinson Lake; Deep Basin; Iron River Township in Iron County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 17 µg/L. Maximum depth: 20 ft. Surface area: 78.1 acres.
- Max depth
- 20 ft
- Area
- 78 acres
- Public access
- Yes
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Why Robinson Lake; Deep Basin; Iron River Township 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 Robinson Lake; Deep Basin; Iron River Township, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded phosphorus, but not water clarity and algae (chlorophyll-a).
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 EGLE and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Robinson Lake; Deep Basin; Iron River Township is a 78-acre lake in Iron County, Michigan with a maximum depth of 20 feet. The lake supports 13 documented fish species including Blackchin shiner, Bluegill, and Bluntnose minnow. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2017-08-27. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Compare the safest swimming lakes near Eagle River →
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Water quality measurements for Robinson Lake; Deep Basin; Iron River Township
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Phosphorus level: 17 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 17 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Robinson Lake; Deep Basin; Iron River Township
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Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 20 ft |
| Surface Area | 78 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Robinson Lake; Deep Basin; Iron River Township
- → Robinson Lake; Deep Basin; Iron River Township fishing forecast & best times (species outlook + 14-day solunar calendar)
- → Robinson Lake; Deep Basin; Iron River Township fishing regulations (limits, seasons, special rules)
- → Is it safe to eat fish from Robinson Lake; Deep Basin; Iron River Township? (mercury & PFAS guide)
Graded lakes near Robinson Lake; Deep Basin; Iron River Township
Robinson Lake; Deep Basin; Iron River Township has no grade, but these lakes within a short drive do.
Nearby Lakes in Iron County
Frequently asked questions about Robinson Lake; Deep Basin; Iron River Township
Where is Robinson Lake; Deep Basin; Iron River Township?
- Robinson Lake; Deep Basin; Iron River Township is a lake in Iron County, Michigan. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Robinson Lake; Deep Basin; Iron River Township?
- Robinson Lake; Deep Basin; Iron River Township in Iron County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 17 µg/L. Maximum depth: 20 ft. Surface area: 78.1 acres.
Is Robinson Lake; Deep Basin; Iron River Township safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Robinson Lake; Deep Basin; Iron River Township is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
How deep is Robinson Lake; Deep Basin; Iron River Township?
- Robinson Lake; Deep Basin; Iron River Township has a maximum depth of 20 feet. The lake covers 78.1 acres.
What fish are in Robinson Lake; Deep Basin; Iron River Township?
- Fish species found in Robinson Lake; Deep Basin; Iron River Township include Blackchin shiner, Bluegill, Bluntnose minnow, Common shiner, Golden shiner, Johnny darter, Largemouth bass, Northern longear sunfish, Pugnose shiner, Pumpkinseed, Rock bass, Western banded killifish, Yellow perch. Robinson Lake; Deep Basin; Iron River Township is located in Iron County, Michigan.
Are there boat ramps on Robinson Lake; Deep Basin; Iron River Township?
- Robinson Lake; Deep Basin; Iron River Township has 1 documented boat landing in the USGS National Boat Ramps inventory. Public access is listed as yes.
Explore Robinson Lake; Deep Basin; Iron River Township across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 2017. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- Michigan EGLE - MiCorps
21MICH_MICORPS2 samples · 2017
Analytical methods
- Phosphorus by Colorimetry
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory