Jurassic Trail -- Loop via EKG
The Jurassic Trail is a smooth singletrack on the west side of the Klondike Bluffs riding area. There's very little elevation change over the ride, as it skirts the edge of the mesa to the west of the Copper Ridge road. The trail is suitable for beginners. There's little elevation change on the trail. There are no stiff climbs and nothing tricky. This page describes a loop that will satisfy advanced riders, using the west-side singletrack southbound and EKG northbound.
Riding notes, counterclockwise with EKG:
0.0   From Agate's northern end, south on West Agate
        N38 49.095 W109 45.631
0.8   R on Midline  N38 48.763 W109 45.089
        (L = Midline, straight = Agate East)
1.1   R on Jasper West (L = Jasper East)
        N38 48.589 W109 44.902
1.9   R on connector (straight = Jasper East)
        N38 48.200 W109 44.551
2.0   R on Jurassic  N38 48.201 W109 44.503

3.3   R to stay on Jurassic N38 47.440 W109 43.718
4.9   L on Klondike Bluffs DT
N38 46.870 W109 43.064
5.0   Straight onto Dino Flow
N38 46.997 W109 43.072
        (L = Copper Ridge DT, R = Klondike DT)
5.2   R on EKG (L = continue Dino Flow)
N38 47.119 W109 42.984
6.0   Join Dino, cross wash, fork R for EKG
        N38 47.369 W109 43.253
6.6   Keep straight, cross Baby Steps South
        N38 47.743 W109 43.286
8.4   Cross Little Salty N38 48.598 W109 43.910
9.7   R to join Baby Steps N, then L on EKG
        N38 48.954 W109 44.620
10.7 L downhill on Mega Steps
        N38 49.420 W109 45.038
        (Straight = Alaska, R = Mega Steps up)
10.9 Keep on Mega Steps straight westbound
        N38 49.353 W109 45.171
        (Join and split off from Dino Flow)
11.2 Mega Steps parking, R on DT
       N38 49.179 W109 45.412
11.4 Back at Agate parking

Getting there, Agate Northern Klondike TH:  On Highway 191 8.5 miles south of I-70 and 6.5 miles north of the southern Klondike Bluffs road (and about 5 miles north of the airport), watch for a "Northern Klondike" sign at N38 49.504 W109 46.893. Turn east (toward the sandstone bluff). Keep to the right as the road winds south around a small hill. 1.2 miles from the highway as the road is heading east toward the bluff, fork right on a fainter jeep road N38 49.103 W109 46.061, as the main road continues to the dinosaur tracks. (Park here if the road is in bad shape.) At mile 1.6, you'll come to the TH for the Jasper and Agate loops (N38 49.087 W109 45.625) on your right. (If you continuye on, you'll arrive at a larger parking area N38 49.179 W109 45.417 at the bottom of Mega Steps.)

Getting there, Klondike TH: Starting at the Colorado River, drive 15 miles north from Moab. Look for a turnout with parking on the right and a sign for Klondike Bluffs Road. There will usually be cars parked there (GPS N 38 44.452' W 109 44.037'). For a longer ride, park here and ride up the road.  Most cyclists will choose to go through the gate and drive 2.7 miles. Keep left at the fork. At 2.8 miles, park your car in the broad parking area by the fence. Go eastbound across the cattleguard for the Klondike trail, or find the singletrack Inside Passage at the north corner of the fence.