BLM ACECs: Designated Areas of Critical Environmental Concern in U.S. Public Lands

BLM Designated Areas of Critical Environmental Concern (ACECs) are polygons defining public land areas requiring special management. The data is provided by the U.S. Department of the Interior and was last updated in March 2026. These areas are managed to protect historic, cultural, scenic, fish and wildlife, and other natural values from irreparable damage.

Use Cases

• Mapping protected natural and cultural resources based on designated ACEC boundaries.
• Analyzing land management zones for environmental impact assessments based on the described protection criteria.
• Planning conservation and recreation activities based on areas requiring special management attention.

Strengths

• Data is provided by the authoritative U.S. Department of the Interior.
• Multiple geospatial file formats are available, including KML, GeoJSON, and ArcGIS services.
• Last updated on 2026-03-11, suggesting recent maintenance.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and spatial extent are unknown, which may limit suitability assessment.

Provenance

Source

Department of the Interior

Freshness

Last updated 2026-03-11 09:33:12.923859

Geography

United States public lands