Anthony "Tony" Swan Missing Near Mt. Adams: Open Yakama Wilderness SAR, Tip Lines Not Theories

As of September 14, 2026, Anthony “Tony” Swan remains listed in a Washington State Patrol Missing Indigenous Persons alert. This article summarizes the public appeal and local reporting; it is not an official search bulletin. His whereabouts remain unknown in the sources reviewed.

Anthony “Tony” Swan, 21, was last seen at approximately 2:55 p.m. on September 3, 2026, at Mosquito Lake in a closed area of the Yakama Reservation, near Potato Hill, northwest of Mount Adams, Washington. Per family descriptors carried by the Yakima Herald-Republic, he is about 6 feet 1 inch tall and was wearing dark pants, a green shirt, and a gray hooded sweater.

According to his aunt, Leslie Swan, whom he lives with, Tony and cousins had gone for a day trip to fish and spend time in the mountains. He told family he was going for a walk, something she said was not unusual for him. He did not return. That is the ordinary start of a wilderness overdue case: a brief walk in dense, wet, complicated country, then silence.

What searchers have already done

By September 11, the Yakima Herald-Republic reported that efforts had entered a second week, with community volunteers and Yakima County Search and Rescue among those working the problem. Family updates described wider grid searches, a fixed-wing flight over the area, and additional drones assisted by local police. Search dogs were used; scent work was hampered by rainy weather, which also degraded ground sign.

The Washington State Patrol alert remained publicly listed when checked on September 14. Its flyer says it was activated on behalf of the Yakama Nation Department of Public Safety. Readers should check the official alert for subsequent updates.

Dense vegetation, challenging terrain, wet weather, and a closed-area access picture are enough to explain why a search can stretch into a second week. Rain washes scent and tracks. Timber hides heat signatures. A closed area means outsiders should not treat a news map as a hiking invitation.

Tip first

The Washington State Patrol flyer gives these official reporting instructions:

If seen, call 911. Agency non-emergency: (509) 865-2933. Case 26-005468.

The Yakima Herald-Republic has also reported family-coordinated donation options for gas and search supplies; those are support channels described in press, not substitutes for official tip reporting. Anyone considering volunteering should follow family and SAR direction — experienced trackers and hikers were specifically noted as useful in earlier Herald coverage — and should not freelance into closed reservation land or active grids. For how tip routing works, see the house safety guidance.

What this desk will not do

Monstrum Athenaeum runs a Cryptid desk. That does not license monster framing on an open missing-person file. We will not claim a cryptid, spirit, or conspiracy took Tony Swan. We will not draw a “vanishing polygon” through Potato Hill and call rain and timber proof of anything nonhuman. We will not publish creature art on this card. We will not invent Mosquito Lake coordinates or republish unpublished search grids.

A grain of salt is appropriate for online rumor. It is not a license to reframe a family's worst days as folklore. Wilderness SAR cases close, when they close, on tips, weather windows, dogs, aircraft, and ground work. Potato Hill is a named summit on published topos (approximate public landmark pin: 46.3332, -121.5012). Mount Adams anchors the regional map. The last-seen lake sits, per press, in a closed portion of the Yakama Reservation. A pin on an Athenaeum map, if published, is a story marker, not a permit. For the wider seasonal picture, see the late-summer 2026 wildland SAR cluster.

Where the story stands

OPEN wilderness SAR. Anthony “Tony” Swan, 21, Yakama Nation, last seen about 2:55 p.m. September 3, 2026, at the Mosquito Lake / Potato Hill area northwest of Mt. Adams. Yakima County SAR, Yakama Nation officials, and community searchers have worked drones, aircraft, dogs, and grids into a second week and beyond. Cause unknown. If seen, call 911. Agency non-emergency: (509) 865-2933; case 26-005468. Respect closed tribal land, and leave families to be helped through published channels.

Sources

• Washington State Patrol — Anthony Swan Missing Indigenous Persons alert and official reporting instructions (checked September 14, 2026)
• Tammy Ayer, Yakima Herald-Republic — “Search for man missing near Mount Adams enters second week” (Sept. 11, 2026)
• Tammy Ayer, Yakima Herald-Republic — “More join search for young Yakama man near Mount Adams” (Sept. 9, 2026)
• Tammy Ayer, Yakima Herald-Republic — “Family seeking help with search for Yakama man missing near Mount Adams” (Sept. 7, 2026)

This article summarizes publicly available reputable press for news, commentary, literacy, and tip routing. It is not a law-enforcement product, missing-persons investigation, or official search bulletin. Monstrum Athenaeum is not law enforcement and does not claim that any cryptid, paranormal entity, conspiracy, or nonhuman agent caused Anthony “Tony” Swan's disappearance. Cause remains unknown in public reporting reviewed for this package. This is an open wilderness search-and-rescue matter. If you have information that may help, follow the Washington State Patrol flyer: call 911 if seen, or the listed agency non-emergency line at (509) 865-2933, case 26-005468. Send tips to the responsible agency, not this website. Do not trespass on the Yakama Reservation, enter closed areas, or interfere with search operations because a map pin exists; a pin is a story marker for a named public landmark, not a permit. Privacy of the Swan family and the Yakama Nation community is paramount; do not harass relatives, republish non-public details, or invent theories about an open case. Donation options for search logistics, when mentioned, are cited only as reported by the Yakima Herald-Republic; verify before sending funds. MonstrumAthenaeum.org is intended for mature audiences and does not claim scientific confirmation of any cryptid's existence.