The Appellants in this case, the Board of Commissioners of Sweetwater County, Wyoming, and the Board of Trustees of Memorial Hospital of Sweetwater County, Wyoming (collectively, “Sweetwater County”), appeal a decision by the United States District Court for the District of Wyoming dismissing their suit against Wyoming’s governor, treasurer, and auditor (collectively, “Wyoming”). Before the district court, Sweetwater County sought a preliminary and permanent injunction preventing Wyoming from enforcing legislation that directs funds generated from lands granted to the state by the federal government “for a hospital for miners who shall become disabled or incapacitated to labor[ ] while working in the mines of the state,” Wyoming Act of Admission, ch. 664, § 11, 26 Stat. 222 (1890), to a “state miner’s [sic] hospital board” (Hospital Board), which is charged with overseeing health services for miners in the state, Wyo. Stat. Ann. §§ 30-6-101(a), 30-6-102. Sweetwa-ter County contended that this new arrangement violated a federal trust created by the Act of Admission and ran afoul of provisions in the Wyoming Constitution. After hearing arguments on Sweetwater County’s request for a preliminary injunction, the district court held that the Wyoming Act of Admission did not establish a trust for a state miners’ hospital. As a result, the district court concluded that Sweetwater County’s suit did not present a question of federal law, dismissed the purported federal claims for lack of subject matter jurisdiction, and declined to exercise supplemental jurisdiction over Sweet-water County’s remaining state law claims.
Sweetwater County subsequently appealed to this court the district court’s interpretation of the Wyoming Act of Admission. Because we conclude that, even assuming a trust exists, Sweetwater County lacks standing, we DISMISS this action.
I. Background
In 1890, the state of Wyoming entered the Union pursuant to the Wyoming Act of Admission. In this legislation, Congress granted 30,000 acres of federal land to the state “for a hospital for miners who shall become disabled or incapacitated” while working in mines within the state, and declared that the land should not be sold for less than $10 per acre. Wyoming Act of Admission § 11.
Less than a year after entering the Union, Wyoming set to work building a miners’ hospital. On January 10, 1891, the Wyoming legislature passed legislation calling for the location of the hospital to be chosen by popular vote during the November 1892 general election. In the ensuing election, Wyoming’s citizens chose the town of Rock Springs, located in Sweetwa-ter County, to be the home of the miners’ hospital; following the election, the state legislature enacted legislation calling for the construction of a miners’ hospital in Rock Springs. A few years later, the state *1111 renamed the facility “The Wyoming General Hospital” and declared that “[t]he object of said hospital shall be to provide sustenance, care and medical and surgical attention for all miners who .shall become disabled or incapacitated to labor while working in the mines of the state ... and to such other persons as may be admitted under the laws, rules, and regulations established for the government thereof.”
For the next fifty years, the state continued to operate and oversee the Wyoming General Hospital. In 1947, however, the Wyoming legislature transferred ownership and responsibility for the hospital to Sweetwater County. The transferring legislation specified that all income generated from the original 1890 land grant would “be paid to said county to be used” for the care of disabled and incapacitated miners, as long as the hospital served disabled and incapacitated miners. 1947 Wyo. Sess. Laws Ch. 64, §§ 2-3. The hospital was then renamed Memorial Hospital of Sweet-water County, and, from 1947 until 2001, served as the state’s miners’ hospital.
In 2001, however, the state legislature enacted a bill creating a “State Miner’s Hospital Board.” See Wyo. Stat. Ann. § 30-6-101 et seq. Under this legislation, the Hospital Board, comprised of members of the Sweetwater County Memorial Hospital Board, citizens of Sweetwater County and another county, and a member from another county hospital’s board, assumed primary responsibility for addressing miners’ health care needs in the state. The legislation specifically charged the Hospital Board with developing a comprehensive health care plan for miners, contracting with providers for health care services for miners, and developing regulations for determining miners’ eligibility for health services. See id. § 30-6-102(b). Most importantly, the legislation declared that the Hospital Board, and only the Hospital Board, would receive money from the lands granted to the state for a miners’ hospital. Id. § 30-6-102(a). In essence, it appears that the legislation implicitly repealed portions of the 1947 legislation directing that Memorial Hospital receive all income from the miners’ hospital land grant and explicitly allowed the state to contract with various parties to provide health services to miners.
The present suit then followed.
II. Analysis
On appeal, Wyoming argues that, even if we assume the existence of a land trust, Sweetwater County lacks standing to bring the present suit because it is neither a trustee nor a beneficiary of the alleged trust. Although the district court, having concluded that the Admission Act did not create a land trust, did not base its subject matter jurisdiction ruling on standing, standing is a “threshold issue in
every
case,”
Hutchinson v. Pfeil,
A. Standing Law
“The standing inquiry requires us to consider ‘both constitutional limits on federal-court jurisdiction and prudential limitations on its exercise.’”
Sac & Fox Nation of Mo. v. Pierce,
(1) “injury in fact”' — meaning “the invasion of a legally protected interest that is (a) concrete and particularized, and (b) actual or imminent, not conjectural or hypothetical”; (2) “a causal relationship between the injury and the challenged conduct” — meaning that the “injury fairly can be traced to the challenged action of the defendant”; and (3) “a likelihood that the injury will be redressed by a favorable decision” — meaning that the “prospect of obtaining relief from ... a favorable ruling is not too speculative.”
Buchwald,
In addition to satisfying the prerequisites for constitutional standing, a plaintiff must also meet, generally speaking, the requirements of prudential standing, a judicially-created set of principles that, like constitutional standing, places “limits on the class of persons who may invoke the courts’ decisional and remedial powers.”
Warth,
We have further explained that, in the federal-land-trust context, a political subdivision of a state (such as Sweetwater County) suing a state or state officials (such as Wyoming) for an alleged breach of a federal trust under the Supremacy Clause must satisfy two criteria before the suit may go forward. First, we have ex
*1113
plained, the political subdivision should be “ ‘substantially independent’ from the state.”
1
Branson Schl. Dist. RE 82 v. Romer,
B. Sweetwater County Standing
With these guidelines in mind, we turn to the question of whether, assuming that the Wyoming Act of Admission created a trust for a miners’ hospital, Sweetwater County has standing to sue for an alleged violation of that trust.
Considering first Sweetwater County’s political subdivision status, we note that it is clear that the County and the Memorial Hospital Board of Trustees possess sufficient political independence to maintain a suit against Wyoming officials for a violation of the alleged trust.
See Branson Schl. Dist.,
Sweetwater County’s ability to press its suit against Wyoming officials falters, however, when we consider the “most important[ ]” factor identified by
Branson School District
of whether the political subdivision is essentially a “trustee” or “beneficiary” of the trust.
Similarly, the parties do not dispute that miners disabled while working in Wyoming mines were the intended beneficiaries of the alleged trust, not Sweetwater County and not any particular state hospital. 3 (See Aplt. Br. at 28-29 (“The Act of Admission and Constitution explicitly articulate that the purpose of the land grant was *1115 for a Miners’ Hospital for disabled or incapacitated miners.... ”)).
Because Sweetwater County, a political subdivision of Wyoming, is neither the trustee nor the beneficiary of the hypothetical trust, nor the trust’s settlor, it is unable to maintain its suit against Wyoming.
4
See, e.g., Branson Schl. Dist.,
C. Merits
Having concluded that Sweetwater County cannot satisfy the requirements for political subdivision standing,
5
we need not address the jurisdictional question considered by the district court: whether the Wyoming Act of Admission created a federal trust for a miners’ hospital.
6
See Qwest Communications Int’l, Inc. v. Federal Communications Comm’n,
*1116 III. Conclusion
Because we conclude that Sweetwater County lacks standing even if a federal trust exists, we DISMISS this appeal.
Notes
. In
Branson School District,
we examined in considerable detail the circumstances under which a political subdivision of a state may sue the state for breaching obligations imposed under a federal land trust. We observed that, generally, municipalities and counties may not sue a state for alleged violations of the Fourteenth Amendment, because, we pointed out, that Amendment “was written to protect individual rights, as opposed to collective or structural rights.”
. In its complaint, Sweetwater County asserted that it was a "fiduciarfy]” of the alleged trust and is “charged by law with the responsibility of protecting the interests of incapacitated and disabled miners of the state.” (Complaint ¶ 5.) The only authority remotely suggested by Sweetwater County in support of this blanket assertion, however, seems to be that it historically received money from the purported trust to care for miners.
. Sweetwater County alleges that the Act of Admission incorporated specific provisions of the Wyoming Constitution that further restricted the state’s ability to dispose of land grants from the federal government. Because the issue is not relevant to how we resolve this appeal, we express no opinion as to whether the federal Act of Admission incorporated portions of the Wyoming Constitution. We would simply note that, like the Act of Admission, the Wyoming Constitution refers to the state’s obligation to manage land grants, reinforcing the notion that if a trust exists, the state of Wyoming acts as trustee. See Wyo. Const. Art. 18 § 1 ("The State of Wyoming hereby agree to accept the grants of land heretofore made, or that may hereafter be made by the United States to the state, for educational purposes, for public buildings and institutions and for other objects ....”); § 4 (declaring that the state legislature shall enact laws for the "sale, disposal, leasing or care of all lands”).
. Sweetwater County repeatedly argues that it has standing to press its suit in light of our decision in
Branson School District.
In
Bran-son School District,
we recognized that a political subdivision of state can, in some instances, invoke federal land grant statutes, "assert[ ] the structural protections of the Supremacy Clause of Article VI," and sue "its creating state” in federal court for allegedly violating a federal trust.
. Because Sweetwater County lacks political subdivision standing, we do not resolve constitutional or prudential standing issues. Thus, we do not address difficult issues of redressability,
compare Baca v. King,
. We express no opinion as to what rights Wyoming state law might grant Sweetwater County. Although Sweetwater County's complaint raised issues of state law, the district court declined to review those claims after it dismissed the underlying federal claim. As best we can tell, Sweetwater County does not appeal this portion of the district court’s ruling. Moreover, the district court's ruling comports with our general admonishment that district courts should dismiss state claims without prejudice after all federal claims have been dismissed, particularly when the federal claims are dismissed before trial,
see Ball
v.
Renner,
