Flat Cable to Johns99 Loop -- Sweeney's to Flat Cable to Loose Moose to Drift Road to Apex Connector to Flat Iron to Link to Johns99 to Johns to South Sweeney's
If you've been-there done-that in the Park City area, here's fresh trail. This nice 12-mile loop has 1800 vertical feet of climbing and hits some beautiful but less-traveled singletrack.

Much is easier-intermediate in tech requirement, but Sweeney's Switchbacks and Johns Trail are advanced trails. Bottom altitude is 6900 at the PCMR parking. The top is about 8500 just above Link on the Flat Iron doubletrack. Trail conditions change. Use this guide at your own risk.

Getting there: In Park City head south on Main Street, following the signs toward Park City Mountain Resort. At the stop light, turn right on Empire then keep right on Silver King Drive. As you see the first parking area, turn in and park there. The trail starts by heading back to the street and riding south (uphill past the resort) on Lowell Ave.

Riding directions, counterclockwise:
0.0   Leave parking, south on Lowell Ave
N40 39.262 W111 30.508
0.7   As pavement turns, keep straight onto DT
N40 38.784 W111 30.081
1.0   Fork R to Sweeney's N40 38.602 W111 29.901
1.5   Fork L N40 38.788 W111 30.241
1.6   Fork R onto Flat Cable N40 38.722 W111 30.263
2.2   Critical: straight and uphill on Loose Moose
N40 38.572 W111 30.447
2.6   R off Loose Moose onto connector
N40 38.379 W111 30.433
2.9   R across open area, up to lift then left on DT
N40 38.192 W111 30.676
3.4   Straight on Drift Road N40 38.009 W111 30.705
3.5   R on ST toward Midmountain
N40 37.952 W111 30.732
3.6   R on Midmountain N40 37.862 W111 30.892
3.7   L uphill N40 37.907 W111 30.840
3.8   Straight on Steps (R = Midmountain)
N40 37.874 W111 30.916
4.0   Straight on Flat Iron ST connector
N40 37.732 W111 31.083
4.1   Cross DT, then join DT Flat Iron
N40 37.679 W111 30.971
4.7   Downhill L to Link ST N40 37.443 W111 31.265
5.0   Join Midmountain, immediate L on Link
N40 37.500 W111 30.986		5.4   L on Johns99 N40 37.358 W111 30.804
6.0   Empire joins and splits, R on Johns99
N40 37.580 W111 30.854
6.8   Johns99 downhill across Kings Road
N40 37.830 W111 30.321
7.3   Climb R to ridge, R toward lift
N40 37.893 W111 30.770
Uphill to R of lift N40 37.947 W111 30.694
7.5   R on ST N40 38.016 W111 30.573
8.9   Fork L (R = 4:20) N40 38.414 W111 30.196
9.0   Keep R (L = Sweeney's-Johns connector
N40 38.434 W111 30.210
9.2   L (R = Kings Road connector)
N40 38.497 W111 30.159
9.3   Straight as Sweeney's forks 180 right
N40 38.514 W111 30.253
9.7   R on Flat Cable (the way you came)
N40 38.590 W111 30.433
10.3 Straight on Sweeney's N40 38.718 W111 30.262
10.5 L on connector N40 38.645 W111 30.077
10.7 L on South Sweeney's N40 38.508 W111 29.952
10.8 L (R = King Road connector)
N40 38.471 W111 29.887
11.1 Flirt with homes, L on ST at street
N40 38.507 W111 29.829
11.2 Pass North Sweeney, keep straight
N40 38.599 W111 29.896
12.2 Back at parking