On their famous expedition, Lewis and Clark passed through Idaho’s Lemhi Range, marvelling at the quick landscape transitions and gorgeous scenery. The area is still well-known for its colorful wildflowers like these arrowleaf yellow balsam-roots, lupine and purple delphinium. Captain Lewis collected several new plant species in Idaho including mountain maple, common snowberry and Lewis’s monkey flower. Modern day explorers can follow in the expedition’s footsteps on the Lewis and Clark National Historic Trail and experience the same awe without the 19th century hardship. Photo of moonrise by Bob Wick, Bureau of Land Management (@mypubliclands).