Ron Opsahl

Senior Attorney

As a wildlife biologist and natural resource attorney, Ron is able to couple a deep understanding of the scientific principles underpinning environmental and natural resource issues with a thorough grasp of the law to represent clients’ interests in private and public land use and development. He is an experienced litigator, primarily specializing in litigation focused on administrative appeals, judicial review of administrative decisions, and state and federal land use plans and determinations involving wildlife management, mining claims and mineral development, oil and gas development, timber harvest, livestock grazing, and other uses of public and private lands.

Ron is an MSLF alum, having served as a Staff Attorney between 2005 and 2011, and returned to MSLF as its Senior Attorney in May 2019. Ron leads MSLF’s endangered species and natural resources efforts, is licensed to practice in Arizona, Colorado, Kansas (inactive), Montana, and Wyoming, and is admitted to appear in several U.S. District Courts, the Ninth and Tenth Circuit Courts of Appeal, and the United States Supreme Court.

Related Cases
Rayco, LLC v. Bernhardt

Fighting to Save the Family Legacy

Emerson and Fay Ray were a young couple, recently married, when they first came to California. It was the height of the Great Depression and Emerson had heard he might be able to get a job in California pouring concrete. Now the government is threatening to destroy the legacy they built for their family.

Related Posts

Cory Booker’s Unsafe Gun Control Ideas

MSLF attorney Cody Wisniewski was cited by Reason magazine, explaining why California’s gun regulations, similar to those proposed by Senator Booker, could actually make guns less safe.

MSLF in Outdoor Life Magazine

MSLF attorney Cody Wisniewski was quoted this week in Outdoor Life magazine in a story highlighting the first big Second Amendment case to go before the Supreme Court since 2010.

Supreme Court Says No to NYC’s 2nd Amendment Avoidance Scheme

Are New York City officials afraid of the Constitution?

MSLF attorney Cody Wisniewski writes in National Review Online about the scheme New York City officials used to try to keep the Supreme Court from reviewing the most important Second Amendment case in nearly a decade.

The Grizzly Wars

MSLF attorney Cody Wisniewski is quoted today in the Capital Press on the escalating battle between extreme environmental activists and Fish & Wildlife administrators. An environmental group has filed notice it will sue the Trump administration if it does not draft a comprehensive grizzly bear recovery plan encompassing much of the West… “It really is…

The Perversion of the Endangered Species Act

MSLF attorney Cody Wisniewski published an article today in RealClearPolicy, explaining how the Endangered Species Act has been abused in order to lock up enormous tracts of land under federal control: No good deed goes unpunished. Similarly, it seems no well-intentioned piece of legislation is ever used as intended. This could not be more true…

The ‘Parade of Horribles’ is Here

Today in the Washington Examiner MSLF General Counsel Zhonette Brown explains why the stakes for property rights are so high in the Supreme Court case Love Terminal Partners, L.P. v United States: America’s founders enshrined property rights in our Constitution, not just because they thought it would provide a strong blueprint for a free market…

The Courts Have Shown Too Much Deference to Unaccountable Government Officials

MSLF attorney David McDonald explains at National Review Online how the legal system places far too much trust in unaccountable bureaucrats and why that may be about to change: The Ninth Circuit isn’t known for sound constitutional jurisprudence. But a unanimous opinion issued by a three-judge panel last month might just be a new low…

MSLF Confronts EPA Over Conflict of Interest

MSLF attorneys asked acting EPA Inspector General Charles Sheehan to examine possible conflicts of interest in the EPA’s conduct after it caused the release of some 3 million gallons of acidic mine waste from the Gold King mine into the Animas River.