High Country Conservation Advocates v. United States Forest.... 951 F.3d 1217 (2020)
<br />the Solicitor, U.S. Department of the Interior, with him on the
<br />brief), for Defendants -Appellees.
<br />Michael Drysdale, Dorsey & Whitney LLP, Minneapolis,
<br />Minnesota (Sarah Goldberg, Dorsey & Whitney LLP, Salt
<br />Lake City, Utah, with him on the brief), for Intervenor
<br />Defendant -Appellee.
<br />Before BRISCOE, KELLY, and LUCERO, Circuit Judges.
<br />Opinion
<br />LUCERO, Circuit Judge.
<br />This appeal is the latest installment in a long-running dispute
<br />concerning road construction and coal leases in National
<br />Forest lands near the North Fork of the Gunnison River in
<br />Colorado. The Colorado Roadless Rule, which the Forest
<br />Service adopted in 2012, prohibits road construction in
<br />designated areas but included an exception for the North Fork
<br />Coal Mining Area (the "North Fork Exception"). See Special
<br />Areas; Roadless Area Conservation; Applicability to National
<br />Forests in Colorado, 77 Fed. Reg. 39,576, 39,578 (July 3,
<br />2012). In prior litigation, a district court concluded agency
<br />decisions violated the National Environmental Policy Act
<br />("NEPA") and the Administrative Procedure Act ("APA"),
<br />High Country Conservation Advocates v. U.S. Forest Serv.,
<br />52 F. Supp. 3d 1174, 1181 (D. Colo. 2014) ("High Country
<br />I"), and vacated the North Fork Exception, High Country
<br />Conservation Advocates v. U.S. Forest Serv., 67 F. Supp. 3d
<br />1262,1266-67 (D. Colo. 2014) ("High Country II").
<br />Following these decisions, the Forest Service prepared a
<br />Supplemental Final Environmental Impact Statement ("North
<br />Fork SFEIS") and readopted the Exception, Roadless Area
<br />Conservation; National Forest System Lands in Colorado,
<br />81 Fed. Reg. 91,811 (Dec. 19, 2016). Mountain Coal
<br />Company, LLC, submitted lease modification requests in
<br />connection with coal leases in the area. In response, the
<br />Forest Service and the Bureau of Land Management (`BLM")
<br />issued a Supplemental Final Environmental Impact Statement
<br />("Leasing SFEIS") and approved the requests.
<br />In the instant litigation, a coalition of environmental
<br />organizations alleges that the agencies violated NEPA and the
<br />APA by unreasonably eliminating alternatives from detailed
<br />study in the North Fork SFEIS and the Leasing SFEIS.
<br />The district court rejected these challenges. Exercising
<br />jurisdiction under 28 U.S.C. § 1291, we reverse as to the
<br />North Fork SFEIS, *1221 holding that the Forest Service
<br />violated NEPA by failing to study in detail the "Pilot Knob
<br />VVESTLAW
<br />Alternative" proposed by plaintiffs. Accordingly, we remand
<br />to the district court with instructions to vacate the North
<br />Fork Exception. With respect to the Leasing SFEIS, we hold
<br />NEPA did not require consideration of the "Methane Flaring
<br />Alternative" proposed by plaintiffs.
<br />I
<br />The North Fork Coal Mining Area includes parts of three
<br />roadless areas: Pilot Knob, Sunset, and Flatirons. The
<br />Flatirons and Sunset Roadless Areas are south of the North
<br />Fork River and Highway 133. The Pilot Knob Roadless Area
<br />is separated from the others, lying north of the river and
<br />highway. Mountain Coal operates the West Elk Mine, which
<br />is the only operating coal mine in the valley and is located
<br />in the Sunset Roadless Area. There is also an idled mine, the
<br />Elk Creek Mine, partially located in the Pilot Knob Roadless
<br />Area. Coal production at that mine ceased in 2013; as of 2015,
<br />its operator was focused on final reclamation work.
<br />In 2012, after the Forest Service adopted the Colorado
<br />Roadless Rule, BLM approved lease modifications extending
<br />Mountain Coal's leases in the Sunset Roadless Area.
<br />Conservation groups filed suit challenging the Colorado
<br />Roadless Rule, the lease modifications, and a related
<br />exploration plan. The district court concluded that the
<br />agencies violated NEPA in analyzing the North Fork
<br />Exception and the lease modifications. High Country 1, 52
<br />F. Supp. 3d at 1181. After additional briefing on remedies, it
<br />severed and vacated the North Fork Exception and vacated
<br />the approval of the lease modifications. High Country II, 67
<br />F. Supp. 3d at 1266-67.
<br />The Forest Service initiated a new rulemaking process to
<br />reimplement the Exception. In response to a draft of the
<br />North Fork SFEIS, conservation groups submitted a comment
<br />requesting that the Forest Service analyze an alternative that
<br />would prohibit road construction in the Pilot Knob Roadless
<br />Area but permit it in the other two areas. The groups stated
<br />that this alternative—the Pilot Knob Alternative—would
<br />protect 5000 acres, permit mining on 14,800 acres and make
<br />available 128 million short tons of coal while preserving a
<br />geographically and ecologically distinct roadless area. In the
<br />North Fork SFEIS, the Forest Service eliminated the Pilot
<br />Knob Alternative from detailed study with the following
<br />explanation:
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