Diamond Peak is in the 4th highest peak in Idaho and the highest in Idaho's Lemhi Range.  It is also one of the world's Ultra Prominent Peaks (1500 m prominence).

Despite a long, bumpy drive to a pretty high trailhead, the route still raises 4000 feet in under 3 miles, which would qualify it as a vertical kilometer route according to vertical kilometer race standards.

La Jonction (The Junction) is one of the classics of the Mont Blanc Massif and the Chamonix Valley. Joining the Bossons and Taconnaz Glaciers, La Jonction offers a staggering view of the Aiguille du Midi, the Dôme du Gôuter as well as the Aiguilles Rouges.

https://www.randos-montblanc.com/en/very-hard-hikes/la-jonction.html

Start from the brown little house on the parking under the ski jump. Run to the signpost at the top and back again.

The trails at Grafton Lakes State Park (near Albany) are some of the best in the area. They are technical but not terribly steep making them runnable from start to finish. The trails are easy to underestimate, some days leading to giving up in frustration partway through the run. On other magical days it’s possible to literally rise above the obstacles and fly through the woods letting your effortless speed smooth out the trail. The loop was inspired by a run Ethan K. had done here years ago.