Yellowstone National Park N. Entrance Road Reconstruction EA and Wetland/Floodplains Statement of Findings

The NPS has completed an Environmental Assessment (EA) to assess potential impacts of four alternatives for the proposed construction of the North Entrance Road. The alternatives include:

Alternative 1: The No Action alternative would maintain OGR as is and conduct general and emergency maintenance, repairs, and potential re-engineering, as needed. The old North Entrance Road canyon alignment damaged during the 2022 flood would not be reclaimed.

Alternative 2: The Center Alignment (NPS preferred alternative) would create a new alignment but use some segments of the old North Entrance Road canyon alignment, redesign the OGR as a multi-use trail, and reclaim sections of the old North Entrance Road canyon.

Alternative 3: The OGR Alignment would re-engineer the OGR to current NPS Park road standards with wider lanes and shoulders, reclaim sections of the old North Entrance Road canyon alignment.

Alternative 4: The Gardner Canyon Alignment would rebuild the flood-damaged old North Entrance Road canyon alignment and redesign the OGR as a multi-use trail.

Impact topics carried forward for detailed analysis within the EA include:
 Visitor Use and Experience
 Wildlife and Wildlife Habitat
 Special Status Species
 Vegetation and Soils
 Water Resources
 Geologic Resources
 Cultural Resources

The NPS has included a combined Wetland and Floodplains Statement of Findings for the preferred alternative as Appendix A of the EA for public review. Wetland impacts have been avoided and minimized to the extent practicable. Therefore, the proposed project is consistent with E.O. 11990 and NPS Director's Order #77-1, including the NPS no-net-loss of wetlands policy. Similarly, the NPS has determined that the proposed action would not have significant adverse impacts on floodplains and their associated values and functions. Therefore, this project is consistent with NPS Director's Order #77-2.

Document Content:

2026_North Ent Rd EA_Web Newsletter_508.pdf   (15.1 MB, PDF file) 508_YELL North Entrance Road_EA.pdf   (78.4 MB, PDF file) 2026_YELL North Ent Rd EA_FAQs_final.docx   (36.8 KB, .docx file) Disclaimer: Links within the above document(s) were valid as of the date published. Note: Some of the files may be in PDF format and can be viewed using the Adobe Acrobat Reader software. You may download a free copy of from Adobe Systems.