Lower Keystone is the centerpiece to the lower mountain at CBMR.
Its rolling hills are great for beginners and intermediate skiers to get used to gaining speed and has plenty of options to dip into the trees on the right and left sides of the trails.
As a warning, there are sections on the left side that end in small drainages that trap you and force you side step out.
You can access this trail by going left from Red Lady Express and following the cat track Peanut trail past Smith Hill, Tulsa, and Roller Coaster and seeing Keystone on the right.
You can also access Lower Keystone from the upper mountain by skiing Upper Keystone, Jokerville, or Twister from the Ruby Road or Peoria and Upper Park from the Yellow Brick Road and therefore lifts Paradise Express, Silver Queen Express, or Twister.
You will also join Lower Keystone when you finish Big Al's, Smith Hill, or Houston.
You can ski onto Lower Smith Hill and to Painter Boy by bearing right on Lower Keystone as you cross under the Red Lady Express.
You can ski to Lower Keystone from the Umbrella Bar and the top of Painter Boy, Gold Link, and Prospect lifts via Splain's Gulch and Houston.
The Keystone Jib Park is lower down on the trail on the right side after Big Al's merges from the left and Houston merges from the right.
Lower Keystone finishes on Warming House Hill where you can access the base area and Red Lady Express, Silver Queen Express, Peachtree Lift, Westwall Lift, and magic carpets.