The Empire Pass parking area is the most direct route. This is also the drop-off if you're shuttling. From Empire Pass, a short connector takes you to the 9K trail, where you'll pedal 1.7 miles to the combined top of Black Forest and Cyn City at the gravel McConkey Road. The Empire Pass parking lot will usually be full on weekends, and I suggest you save it for the hikers anyway.
The Bonanza Flat trailhead is the preferred parking lot. The trail is next to the bathroom. Cross the road to the connector trail and pedal gently uphill until you cross a doubletrack hiking trail to continue on the singletrack Charlie's 9K . It's 2.0 miles from Bonanza Flat parking to the top of Cyn City/ Black Forest .
There's a strip of roadside parking where the Midmountain Trail crosses the Empire Pass road. This is a good option for doing a loop ride with the climbing first.
Upper Tour des Suds is a climbing route to the 9K trail. Find it on the Midmountain Trail 100 feet east of the Empire Pass paved road, combined with the Boulder trail. Turn right on Tour des Suds and climb to the doubletrack and turn left. Connect to Moosebones . When you hit the paved road, climb uphill to Empire Pass.
Connect to Boulder from Midmountain as above. After crossing the gravel road, turn left on Moosebones and climb to Empire pass as above.Located just west of the Empire Pass paved road. Links to TG, then Upper Corvair to reach 9K at Empire Pass.
This is a longer tougher loop option for conditioned skilled riders. From Midmountain north of the bottom of Cyn City (in the PCMR area) catch Tommy's Two Step uphill to the Yurt, then cross the roads to Three Candles . Take Keystone to the Shadow Lake trail. When Shadow Lake ends on old doubletrack, turn 180 degrees left onto Blazing Saddles. Fork left downhill when you reach the fork for the 9K trail and follow it a few miles to the top of Cyn City.