The Tonto National Forest is preparing an environmental impact statement(EIS) to disclosure the environmental effects from: 1) a mining proposal submitted by Resolution Copper; 2)the exchange of land between Resolution Copper and United States.
Location
Tonto National Forest
Project timeline
1
NOI in Federal Register
03/18/2016
2
DEIS NOA in Federal Register
08/09/2019
3
FEIS NOA in Federal Register
06/20/2025
4
Objection Period Start
06/20/2025
5
Decision
03/2026 (Estimated)
6
Implementation
04/2026 (Estimated)
NEPA / regulatory detail
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | 218 (2013) Non-HFRA |
| Project Activity | Minerals Or Geology Plans Of Operations; Plan Amendment; Land Exchanges |
| Resolution Copper Project and Land Exchange | Decision Signed Date: 03/16/2026 |
| Forests | Tonto National Forest |
| Districts | Globe Ranger District; Mesa Ranger District |
| Legal Land Description | Not Applicable |