Amendment 1: Request for Proposals to Provide Guided Interpretive Saddle and Pack Stock Tours with Yellowstone National Park

Amendment 1

The NPS amends this solicitation and provides responses to questions received. There are no changes to due dates.

Amendment 1 will be available at https://www.nps.gov/subjects/concessions/prospectuses.htm. 
Please be aware there may be a delay in publishing the amendment documents after publication of this notice. 

Summary of Due Dates:
Notice of Intent to Propose Due:    June 3, 2026
Electronic Proposals Due:    June 17, 2026
Hardcopy Offeror's Transmittal Letter Due:    June 26, 2026

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The National Park Service (Service) provides notice of the release of a Prospectus to solicit proposals for the award of up to thirty-seven (37) Concession Contracts (No. CC-YELL1XX-27) to provide guided interpretive saddle and pack stock tours within Yellowstone National Park (“Park”). The effective date of the next Concession Contracts is expected to be May 1, 2027.

The Prospectus explains the business opportunity and the terms and conditions under which the NPS will award the Concession Contracts.

Offerors' Site Visit
The NPS will not host a site visit in association with this solicitation. Interested offerors are encouraged to visit Yellowstone National Park to familiarize themselves with the area. 

Questions Due
If you do not understand something in this Prospectus, you must submit your questions or comments via email to IMR_concessions@nps.gov no later than 4:00 p.m. Mountain Time on April 15, 2026. The questions must be in a format that allows the  Service to copy them to Microsoft Word.

Notice of Intent to Propose
If you plan to submit a proposal in response to this solicitation, you must notify the Service via email at IMR_concessions@nps.gov no later than 4:00 p.m. Mountain Time on June 3, 2026. The Service will not accept proposals from entities that do not provide notice on or before that date.

Submission of an Electronic Proposal
In order to be evaluated and considered for award of a Concession Contract, the Electronic Proposal must be received by the Service no later than 4:00 p.m. Mountain Time on June 17, 2026.  After the Notice of Intent to Propose deadline and prior to the electronic proposal submission deadline, you will receive a welcome email message from the Service's Microsoft Teams platform at the email address you provided when you notified the Service of your intent to submit a proposal. You must accept the invitation before you can access the Teams site to upload your proposal. The Service will not accept proposals submitted in hardcopy or via another electronic platform, including email. See Prospectus Part II Proposal Instructions for details on submitting an Electronic Proposal.

Contact List
To be put on a contact list to receive amendments or any additional information specific to the Prospectus, interested parties must provide their contact information (name, email address, and phone number) to the Service via email at IMR_concessions@nps.gov. The contact list already includes the Existing Concessioners.

Summary of Due Dates:
Questions Due:    April 15, 2026
Notice of Intent to Propose Due:    June 3, 2026
Electronic Proposals Due:    June 17, 2026
Hardcopy Offeror's Transmittal Letter Due:    June 26, 2026