Sorry for not posting sooner. Excellent memory! It's in Laramie.
" But why is Lincoln in Wyoming? It's because the head originally stood alongside the highest point of the old coast-to-coast Lincoln Highway, at Sherman Summit, 8,878 feet above sea level. When I-80 was completed in 1969, the head was moved here -- losing a couple of hundred feet (and its key rationale for existing, really) but gaining a vast new audience.
Abe Lincoln head.
The bronze head weighs over two tons and is 13.5 feet tall. It's perched atop a 30-foot granite pedestal, ensuring that it can be seen from quite a distance, and looking uncomfortably similar to box-bound Captain Pike from Star Trek (the original series). The head is intentionally oversized on tiny shoulders, like a cartoon caricature, and seems to be sagging from its own weight.