Editing Keystone Resort (section)

===2000s to 2020s===
In 2000, the original Ruby (then Teller) lift was removed and replaced with a high speed six pack. The Ruby Express was constructed by Poma and provided faster egress out of North Peak and the Outback.

In 2008, the River Run Gondola, nearing 22 years of continuous service, was retired and replaced with a new gondola. Doppelmayr constructed the replacement River Run Gondola, which had its base area terminal moved from adjacent to the Summit Express to a new location across the river. The new gondola also features a mid-station, allowing guests to upload or download from midway up Dercum Mountain, as well as a new learning area.

In 2014, the Outback Express was given a capacity upgrade to 2,400 pph, using chairs transferred over from the Peru Express and Montezuma Express lifts.

For the 2017 season, Keystone built their second high speed six pack, bringing in Leitner-Poma to replace the Montezuma Express lift. Parts from the old lift were relocated to [[Beaver Creek Resort]] and used to construct the Red Buffalo Express.

In 2021, Keystone completed the upgrade of the Peru Express lift, replacing it with a high speed 6-passenger chair. Part of this project also included removing the Argentine Chair, which was an original lift from the resort.

In 2022, Keystone expanded its lift-serviced terrain into the Bergman Bowl, including a new chairlift, new trails, new snowmaking and a ~6000 sq ft expansion of the Outpost Restaurant.<ref>{{Cite web|title=Capital Investments {{!}} Keystone Ski Resort|url=https://www.keystoneresort.com/the-mountain/about-the-mountain/capital-investments.aspx|access-date=2022-01-01|website=www.keystoneresort.com|language=en}}</ref>