Seth Adams, executive chef and co-owner of Riverhorse on Main, has left the Park City restaurant and its sister spot, Palomino.

The Park Record reported Thursday, Sept. 10, that Adams is stepping away after what the newspaper described as nearly 30 years in his culinary role. Casey Adams, who served as design director for more than 20 years and oversaw interior installations at both restaurants, has also departed.

No successor has been named.

Under Adams's leadership, Riverhorse on Main earned the Forbes Travel Guide Four-Star distinction, the AAA Four Diamond award and the DiRoNA Award of Excellence repeatedly. The restaurant's own website calls it a 16-year recipient of the Forbes Four-Star honor. Visit Park City's listing describes it as Utah's only restaurant holding all three distinctions.

Adams became executive chef in 2004 and took an ownership stake alongside business partner Dave Spence in 2011, according to a Park City Style Magazine profile published in October 2022. Originally from Pittsburgh, Adams was drawn to Park City by skiing and built his culinary career here. In that 2022 profile, he joked about the loyalty of Riverhorse regulars: "I'd get my tires slashed if I took the halibut off the menu!"

"It is an honor to be considered a leader in Park City, and I look forward to continue serving the community in my various roles as a chef, business owner, neighbor and friend," Adams said in the Park Record report.

The departure does not end Adams's presence in the local food scene. He will continue as sole owner of Salt Box Eatery and Catering at 1782 Prospector Ave. and said he plans to announce new culinary offerings soon.

Adams opened Salt Box as a dedicated catering kitchen separate from Riverhorse, according to a February 2021 Park Record report. Riverhorse on Main, Palomino and Salt Box all earned 2025 Taste Utah Awards from the Utah Restaurant Association.

The restaurant, which opened on New Year's Eve in 1987, serves dinner nightly starting at 5 p.m.