Categorical Exclusion · Inyo National Forest · updated 6/5/2026 · decision 9/2026 (Estimated)
The project area is located approximately 6.2 miles east of Mammoth Lakes, on ten mining claims owned by KORE (Figure 1 – Location Map). All ten lode mining claims are found in portions of Section 26, T. 3S., R. 28E., Mount Diablo Base Meridian. (Figure 2 – Project Map). · Mono, California
On November 12, 2025, the Mammoth Lakes Ranger District of the Inyo National Forest received a Plan of Operations (Plan) from KORE USA Ltd. (KORE) for their Long Valley Exploration Drilling project in Mono County, California. KORE plans to conduct exploration-level activities for deposits of gold.
Minerals and geology
NEPA / regulatory detail
| Categorical Exclusion | USDA-32d-USFS |
Environmental Assessment · Inyo National Forest All Units · updated 4/10/2025
Coyote Flat area, Southeast of the City of Bishop. · Inyo, California
Improve road and motorized trail management in the Coyote Flat area. Repair system roads for safety and resource protection, review travel management decision in this area and adjust if needed for resource protection and recreation enhancement.
Recreation managementRoad management
Comment Period
05/17/2024
Objection Period Start
11/02/2024
Decision
04/2025 (Estimated)
Implementation
06/2026 (Estimated)
Project documents
NEPA / regulatory detail
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | 218 (2013) Non-HFRA |
| Project Activity | Road Decommissioning; Trail Management; Road Maintenance; Road Improvements/Construction; Travel Management |
| Forests | Inyo National Forest |
| Districts | White Mountain Ranger District |
| Legal Land Description | Not Applicable |
Decision Memo · Mammoth Ranger District · updated 3/25/2025
The Sherwin area is generally south of Old Mammoth Road, south of the Town of Mammoth Lakes (TOML), consisting of several meadows and a mountain range. · Mono, California
Development of designated trails for protection of natural and cultural resources. This proposed action includes decommissioning of user created trails, reconstruction of user created trails, and new trail construction.
Recreation management
Scoping Start
04/2025 (Estimated)
Decision
06/2025 (Estimated)
Implementation
07/2025 (Estimated)
Project documents
NEPA / regulatory detail
| Categorical Exclusion | 32.2 (1), 36 Cfr 220.6(E)(1); 32.2 (20), 36 Cfr 220.6(E)(20) |
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Trail Management |
| Forests | Inyo National Forest |
| Districts | Mammoth Ranger District |
| Legal Land Description | T40S R27E S1,2,9,10,11; T40S R28E S6 |
Environmental Assessment · Mono Ranger District · updated 3/10/2025
Mono Lake Ranger District east of Highway 395 · Mono, California
Gather and removal of excess wild horses that are located outside MPWHT to protect rangeland resources and proposed critical habitat for greater sage-grouse as well as address public safety concerns along highways/roadways.
Special area management
Comment Period
05/28/2024
Objection Period Start
08/08/2024
Decision
03/2025 (Estimated)
Implementation
08/2025 (Estimated)
Project documents
NEPA / regulatory detail
| Special Authority | Nepa Document Prepared By Another Federal Agency |
| Notice and Comment Regulation | 218 (2013) Non-HFRA |
| Project Activity | Special Area Management |
| Forests | Inyo National Forest |
| Districts | Mono Ranger District |
| Legal Land Description | Not Applicable |
Decision Memo · Inyo National Forest All Units · updated 3/3/2025
Mazourka Canyon · Inyo, California
Safety closures and restoration for three abandoned mine sites in Mazourka Canyon. Closures will include plugging or placing bat-friendly gates on mine shafts, removing abandoned equipment or materials, and placing rocks for more natural appearance.
Minerals and geology
Decision
08/2025 (Estimated)
Implementation
09/2025 (Estimated)
Project documents
NEPA / regulatory detail
| Categorical Exclusion | 32.2 (8), 36 Cfr 220.6(E)(8) |
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Abandoned Mine Land Clean-Up |
| Forests | Inyo National Forest |
| Districts | Mount Whitney Ranger District |
| Legal Land Description | Not Applicable |
Environmental Impact Statement · Inyo National Forest All Units · updated 3/3/2025
Silver Canyon, east of Bishop, CA · Inyo, California
Installation of remote fault indicators, packet routers, and installation of remote switches along with poles replacements.
Special use management
NOI in Federal Register
11/2023 (Estimated)
DEIS NOA in Federal Register
03/2024 (Estimated)
FEIS NOA in Federal Register
06/2026 (Estimated)
Objection Period Start
06/2025 (Estimated)
Decision
06/2026 (Estimated)
Implementation
07/2026 (Estimated)
Project documents
NEPA / regulatory detail
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | 218 (2013) Non-HFRA |
| Project Activity | Special Use Authorizations |
| Forests | Inyo National Forest |
| Districts | White Mountain Ranger District |
| Legal Land Description | Not Applicable |
Environmental Impact Statement · Inyo National Forest All Units · updated 1/29/2025
Mammoth Mountain Main Lodge area · Mono, California
Mammoth Mountain proposes redeveloping its Main Lodge area on private land, with related development on adjacent National Forest lands. Joint CEQA/NEPA analysis. Proposed construction/reconstruction of parking lots,buildings,chairlifts and ski runs.
Recreation managementSpecial use management
NOI in Federal Register
11/14/2022
DEIS NOA in Federal Register
08/2025 (Estimated)
FEIS NOA in Federal Register
04/2025 (Estimated)
Objection Period Start
01/2026 (Estimated)
Decision
04/2026 (Estimated)
Implementation
04/2027 (Estimated)
Project documents
NEPA / regulatory detail
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | 218 (2013) Non-HFRA |
| Project Activity | Developed Site Management; Special Use Authorizations |
| Forests | Inyo National Forest |
| Districts | Mammoth Ranger District |
| Legal Land Description | Not Applicable |
Environmental Assessment · Inyo National Forest All Units · updated 12/17/2024
The entire portion of the Inyo National Forest that has adequate snowfall, excluding areas where OSV use is prohibited by law. Interactive map at: https://tinyurl.com/5d5ej3dv · Inyo; Madera; Mono; Tulare, California
The Inyo National Forest is evaluating its management of over snow vehicle (OSV) use. The purpose of this project is to designate system roads, trails and areas where OSV use will be allowed, in compliance with 36 CFR 212, Subpart C.
Recreation management
Scoping Start
12/2026 (Estimated)
Comment Period
05/2027 (Estimated)
Objection Period Start
09/2027 (Estimated)
Decision
01/2028 (Estimated)
Implementation
02/2028 (Estimated)
Project documents
NEPA / regulatory detail
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | 218 (2013) Non-HFRA |
| Project Activity | Travel Management |
| Forests | Inyo National Forest |
| Districts | Inyo National Forest All Units |
| Legal Land Description | Not Applicable |
Environmental Impact Statement · Inyo National Forest All Units · updated 12/11/2024
Silver and Wyman Canyons on the Inyo National Forest. · Inyo; Mono, California
Southern California Edison is proposing to update and reconfigure approximately 61 linear miles of two existing 55 kilovolt subtransmission lines originally designed and built in the 1930s. BLM is lead agency. Full description: https://bit.ly/44zSlg
Special use management
NOI in Federal Register
12/29/2023
DEIS NOA in Federal Register
05/2025 (Estimated)
FEIS NOA in Federal Register
02/2026 (Estimated)
Objection Period Start
11/2025 (Estimated)
Decision
02/2026 (Estimated)
Implementation
04/2026 (Estimated)
Project documents
NEPA / regulatory detail
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | 218 (2013) Non-HFRA |
| Project Activity | Electric Transmission |
| Forests | Inyo National Forest |
| Districts | White Mountain Ranger District |
| Legal Land Description | Not Applicable |
Environmental Assessment · Inyo National Forest All Units · updated 11/7/2024
Roughly 58,000 acres surrounding the Town of Mammoth Lakes. From near Highway 395/158 Junction in the north to Laurel Creek in the south. · Mono, California
Project collaboration website link: https://www.eswildfirealliance.org/esccrp. Approx. 58,000 acre forest restoration project around the Town of Mammoth Lakes. Activities may include thinning of live and dead trees, pile burning, mechanical and hand.
Fuels managementClimate change adaptation
Comment Period
11/16/2023
Objection Period Start
05/30/2024
Decision
09/2024 (Estimated)
Implementation
04/2025 (Estimated)
Project documents
NEPA / regulatory detail
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | 218 (2013) Non-HFRA |
| Project Activity | Fuel Treatments (Non-Activity Fuels); Forest Vegetation Improvements; Timber Sales (Green); Watershed Improvements |
| Forests | Inyo National Forest |
| Districts | Mono Ranger District; Mammoth Ranger District |
| Legal Land Description | Not Applicable |
Decision Memo · Inyo National Forest All Units · updated 11/6/2024
Monache Meadows · Tulare, California
The proposed Monache Airstrip Restoration Project would bring the airstrip back into safe operation. Volunteers with RAF would remove vegetation using hand tools within existing airstrip footprint. Usage expected up to two planes per day in summer.
Special use management
Decision
01/2025 (Estimated)
Implementation
06/2025 (Estimated)
Project documents
NEPA / regulatory detail
| Categorical Exclusion | 32.12 (4), 36 Cfr 220.6(D)(4) |
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Special Use Authorizations |
| Forests | Inyo National Forest |
| Districts | Mount Whitney Ranger District |
| Legal Land Description | Not Applicable |
Decision Memo · Inyo National Forest All Units · updated 10/23/2024
Rock Creek Lakes Resort adjacent to Rock Creek Lake on the White Mountain Ranger District. · Inyo, California
Fuels reduction and forest resilience project surrounding the Rock Creek Lakes Resort permit area on the Inyo National Forest. Project is funded by a National Resources Conservation Service grant.
Fuels management
Decision
03/2025 (Estimated)
Implementation
06/2025 (Estimated)
NEPA / regulatory detail
| Categorical Exclusion | 32.2 (6), 36 Cfr 220.6(E)(6) |
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Fuel Treatments (Non-Activity Fuels) |
| Forests | Inyo National Forest |
| Districts | White Mountain Ranger District |
| Legal Land Description | Not Applicable |
Decision Memo · Inyo National Forest All Units · updated 9/16/2024
At the end of the Crystal Crag Recreation tract, southeast of cabin 11 and south of Cabin 34; up the old Road to Emerald Lake. · Mono, California
The removal of two existing water storage tanks & constructing a new one. The new steel water storage tank will be 20,000-gallons, 16-foot diameter and 16 ft high. Including new inlet, outlet, drain, overflow, water supply, and distribution pipelines
Special use management
Scoping Start
09/2024 (Estimated)
Decision
09/2024 (Estimated)
Implementation
09/2024 (Estimated)
Project documents
NEPA / regulatory detail
| Categorical Exclusion | 32.2 (3), 36 Cfr 220.6(E)(3) |
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Special Use Authorizations |
| Forests | Inyo National Forest |
| Districts | Mammoth Ranger District |
| Legal Land Description | T4S, R27E SE corner of Section 16 |
Decision Memo · Mammoth Ranger District · updated 7/24/2024
Mammoth Lakes, Mono County, California · Mono, California
Bodie Chapter No. 64 of E. Clampus Vitus is to construct a historical marker w/ bronze plaque northeast of the Tamarack Lodge entrance commemorating the history of the Lodge & its contribution to the history of Mono County and the Mammoth Lakes Basin
Heritage resource management
Decision
08/2024 (Estimated)
Implementation
09/2024 (Estimated)
NEPA / regulatory detail
| Categorical Exclusion | 32.2 (3), 36 Cfr 220.6(E)(3) |
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Heritage Resource Management; Special Use Authorizations |
| Forests | Inyo National Forest |
| Districts | Mammoth Ranger District |
| Legal Land Description | T.4S., R.27E., Section 9 |
Decision Memo · Mammoth Ranger District · updated 6/11/2024
Upper Soda Springs Campground, Pumice Flat Campground, Pumice Flat Group Campground, Pumice Flat Amphitheater, Minaret Falls Campground, Reds Meadow Campground & Agnew Meadows Parking Area · Madera, California
Renovations & ecological restoration at 7 recreation sites / campgrounds in Reds Meadow Valley designed to enhance overall visitor experience, ensure recreation assets support current & future visitation & protect/restore ecologically sensitive areas
Recreation managementWatershed management
Decision
12/2024 (Estimated)
Implementation
06/2025 (Estimated)
Project documents
NEPA / regulatory detail
| Categorical Exclusion | 32.2 (18), 36 Cfr 220.6(E)(18); 32.2 (22), 36 Cfr 220.6(E)(22) |
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Developed Site Management; Watershed Improvements |
| Forests | Inyo National Forest |
| Districts | Mammoth Ranger District |
| Legal Land Description | T3S R26E S26,34,35; T4S R26E S11 |
Decision Memo · Inyo National Forest All Units · updated 9/29/2023
LADWP locations of distribution line maintenance work is on a combination of LADWP and INF lands, staring at the Upper Gorge power plant down to the Long Valley Dam, on the White Mtn. Ranger District · Mono, California
LADWP Utility Maintenance Project:1)removal of poles & replacement of poles in one line and 2)removal of poles & rehab in second line, 3)relinquish poles
Special use management
Scoping Start
04/2024 (Estimated)
Decision
07/2024 (Estimated)
Implementation
10/2024 (Estimated)
Project documents
NEPA / regulatory detail
| Categorical Exclusion | 32.2 (3), 36 Cfr 220.6(E)(3) |
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Special Use Authorizations |
| Forests | Inyo National Forest |
| Districts | White Mountain Ranger District |
| Legal Land Description | Not Applicable |
Decision Memo · Inyo National Forest All Units · updated 9/21/2022
Over the entire Inyo National Forest. · Esmeralda; Mineral; Fresno; Inyo; Madera; Mono, California; Nevada
Ongoing and continuous reissuance of various special use authorizations. Examples of these are resorts, research activities, utilities and events. For further information on any specific permit or permitted activities, contact Erin Noesser.
Special use management
Decision
06/2026 (Estimated)
Implementation
06/2026 (Estimated)
Project documents
NEPA / regulatory detail
| Categorical Exclusion | 32.2 (15) |
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Special Use Authorizations |
| Forests | Inyo National Forest |
| Districts | Inyo National Forest All Units |
| Legal Land Description | Not Applicable |
Decision Memo · Inyo National Forest All Units · updated 12/24/2021
Mammoth Airport Pit · Mono, California
Reissuance of special use permit to the Town of Mammoth Lakes for operation of clean waste disposal at the Airport Pit
Special use management
Scoping Start
01/2022 (Estimated)
Decision
03/2022 (Estimated)
Implementation
04/2022 (Estimated)
Project documents
NEPA / regulatory detail
| Categorical Exclusion | 32.2 (15) |
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Special Use Authorizations |
| Forests | Inyo National Forest |
| Districts | Mammoth Ranger District |
| Legal Land Description | Not Applicable |
Decision Memo · Inyo National Forest All Units · updated 6/29/2018
Little Antelope Communications Site, north of the Mammoth Yosemite Airport · Mono, California
Placement of multi-carrier building and tower at the Little Antelope Communications Site
Special use management
Scoping Start
05/2018 (Estimated)
Decision
08/2018 (Estimated)
Implementation
09/2018 (Estimated)
Project documents
NEPA / regulatory detail
| Categorical Exclusion | 32.2 (3), 36 Cfr 220.6(E)(3) |
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Special Use Authorizations |
| Forests | Inyo National Forest |
| Districts | Mammoth Ranger District |
| Legal Land Description | MDB&M, T. 3S., 28E., Sec 33 |