- Camas Meadows Natural Area Preserve (dnr.wa.gov)
Located in the Wenatchee Mountains of north-central Washington, this 2,018-acre preserve contains the largest known population of two plant species, Wenatchee Mountains checker-mallow (Sidalcea oregana var. calva), which is federally listed as “endangered,” and Wenatchee larkspur (Delphinium viridescens), state-listed as “endangered.” These two species are known to exist only within a portion of the Wenatchee Mountains. The preserve is made up of lush meadows dotted with aspen groves and surrounded by ponderosa pine and fir forests.
- Laurentide Ice Sheet (Wikipedia)
The Laurentide Ice Sheet was a massive sheet of ice that covered millions of square miles, including most of Canada and a large portion of the Northern United States, multiple times during the Quaternary glacial epochs, from 2.58 million years ago to the present.