On Tuesday, January 17, Jeffco’s board of county commissioners will consider a proposed zoning change for a planned 140-acre development on four parcels straddling the four corners of the Alameda and C-470 interchange. The change would allow for a proposed hotel and gas station southeast of the interchange and, on the northwest quadrant, up to four car dealerships, which would surround the Dinosaur Ridge visitor center on three sides. Representatives of the developer, Three Dinos LLC, have described the request as “a minor change” in use for property that’s been zoned for commercial development for nearly a decade. But opponents of the plan say there’s nothing minor about the impacts the development would have on adjoining open-space land, on wildlife, on nearby hiking and biking trails, and on one of the last scenic vistas in the Rooney Valley, which has seen increasing encroachment by highways, the Solterra housing development, a motocross park, Bandimere Speedway and other projects.