; and (iii) by adding at the end the following: (iii) Final appraised value (I) In general Subject to subclause (II), after the final appraised value of the Federal land and the non-Federal land are determined and approved by the Secretary, the Secretary shall not be required to reappraise or update the final appraised value for a period of up to 3 years, beginning on the date of the approval by the Secretary of the final appraised value. (II) Exception Subclause (I) shall not apply if the condition of either the Federal land or the non-Federal land referred to in subclause (I) is significantly and substantially altered by fire, windstorm, or other events. (iv) Public review Before completing the land exchange under this Act, the Secretary shall make available for public review the complete appraisals of the land to be exchanged. ; and (B) by striking subparagraph (G) and inserting the following: (G) Required conveyance conditions Prior to the exchange of the Federal and non-Federal land— (i) the Secretary and Mt. Hood Meadows may mutually agree for the Secretary to reserve a conservation easement to protect the identified wetland in accordance with applicable law, subject to the requirements that— (I) the conservation easement shall be consistent with the terms of the September 30, 2015, mediation between the Secretary and Mt. Hood Meadows; and (II) in order to take effect, the conservation easement shall be finalized not later than 120 days after the date of enactment of the Energy and Natural Resources Act of 2017 ; and (ii) the Secretary shall reserve a 24-foot-wide nonexclusive trail easement at the existing trail locations on the Federal land that retains for the United States existing rights to construct, reconstruct, maintain, and permit nonmotorized use by the public of existing trails subject to the right of the owner of the Federal land— (I) to cross the trails with roads, utilities, and infrastructure facilities