High Island (Main Basin) — Minnesota lake report

Latest published observations

Dated observations and regulatory status are kept distinct.

assessment — cycle

2024publication date: 2024-04-25regulatory evidence · source: assessments

assessment — lake status

impairedpublication date: 2024-04-25regulatory evidence · source: assessments

water quality — monitored clarity ft

3.1 footobserved evidence · source: lake_summary_slim

water quality — monitored clarity year

2025observed evidence · source: lake_summary_slim

Water level

The selected observation names its datum and series; incompatible datums are never combined.

No applicable published fact.

Ice-in and ice-out

Ice-in, ice-out, incomplete seasons, programs, and qualifying trends remain separate.

No applicable published fact.

Water clarity and observed water quality

Observed monitoring and modeled satellite estimates are separate evidence surfaces.

water quality — clarity trend

stableapplication_derived evidence · source: lake_summary_slim · lake_report.v1_projection@1.0.0

water quality — observed latest secchi ft

3.1 footobserved evidence · source: water_quality

water quality — observed latest year

2025observed evidence · source: water_quality

water quality — observed sampling through

2025-09-24observation date: 2025-09-24observed evidence · source: water_quality

water quality — satellite clarity

1.12 metermodeled evidence · source: water_quality_satellite · lake_report.v1_projection@1.0.0

water quality — satellite latest year

2025modeled evidence · source: water_quality_satellite · lake_report.v1_projection@1.0.0

Fish survey and abundance

fisheries — latest lake survey date

No published valueobserved evidence · source: lake_summary_slim

fisheries — species count

No published valueobserved evidence · source: lake_summary_slim

fisheries — survey count

0observed evidence · source: lake_summary_slim

Stocking history

No applicable published fact.

Official AIS listing

This is regulatory listing status, not occurrence evidence.

ais — official status

Not listedregulatory evidence · source: lake_summary_slim

AIS occurrence evidence

Occurrence evidence cannot create or change an official infestation listing.

ais — latest occurrence date

2021-04-10observation date: 2021-04-10observed evidence · source: ais_occurrences

ais — occurrence count

1observed evidence · source: ais_occurrences

ais — occurrence species

[]observed evidence · source: ais_occurrences

Public access and depth contours

access — status

Public access unknownmanagement evidence · source: lake_summary_slim · lake_report.v1_projection@1.0.0

access — types

[]management evidence · source: lake_summary_slim · lake_report.v1_projection@1.0.0

bathymetry — available

Nogeographic evidence · source: lake_summary_slim · lake_report.v1_projection@1.0.0

Public-land and road context

Ownership, management, easements, designations, and included mapped roads remain separate context facts.

public land — designation nearest meters

1278.35368080644 metergeographic evidence · source: public_land_context · public_land.nearest_boundary_distance@1.0.0

public land — designation shoreline adjacent percent

0 percentapplication_derived evidence · source: public_land_context · public_land.shoreline_adjacency@1.0.0

public land — easement nearest meters

No published value metergeographic evidence · source: public_land_context · public_land.nearest_boundary_distance@1.0.0

public land — easement shoreline adjacent percent

0 percentapplication_derived evidence · source: public_land_context · public_land.shoreline_adjacency@1.0.0

public land — management nearest meters

1381.9371366003384 metergeographic evidence · source: public_land_context · public_land.nearest_boundary_distance@1.0.0

public land — management shoreline adjacent percent

0 percentapplication_derived evidence · source: public_land_context · public_land.shoreline_adjacency@1.0.0

public land — other interest nearest meters

0 metergeographic evidence · source: public_land_context · public_land.nearest_boundary_distance@1.0.0

public land — other interest shoreline adjacent percent

100 percentapplication_derived evidence · source: public_land_context · public_land.shoreline_adjacency@1.0.0

public land — ownership nearest meters

1146.4313338959591 metergeographic evidence · source: public_land_context · public_land.nearest_boundary_distance@1.0.0

public land — ownership shoreline adjacent percent

0 percentapplication_derived evidence · source: public_land_context · public_land.shoreline_adjacency@1.0.0

roads — density km per sq km

1.7857 km/km2application_derived evidence · source: road_context · road_context.road_density@1.0.0

roads — eligible buffer area square meters

21878400 square meterapplication_derived evidence · source: road_context · road_context.eligible_buffer_lattice@1.0.0

roads — included length meters

39068.75 meterapplication_derived evidence · source: road_context · road_context.included_length_within_one_kilometer@1.0.0

roads — nearest included meters

3.99 metergeographic evidence · source: road_context · road_context.nearest_included_road_distance@1.0.0

roads — nearest major meters

165 metergeographic evidence · source: road_context · road_context.nearest_major_road_distance@1.0.0

roads — united states coverage complete

Yesapplication_derived evidence · source: road_context · road_context.united_states_source_coverage@1.0.0

Sources, dates, methods, and corrections

Provenance catalog: export_provenance.v1-ca646c5ba79e.json (SHA-256 ca646c5ba79eec8b835ffaae7a9c07b79ec2d768501961bb0393b3727489d5a2).

Methods · Report a correction for DOW 72005001