Black Dog. Trail winds from the middle of Corkscrew down to Flank and River, just south of the water tank. Some technical aspects, length 0.5 miles with 300 vertical feet elevation change. Stiff climb. Top N40 27.958 W111 45.017, bottom N40 27.936 W111 45.325.Brown Dog. Tougher trail extending from Corkscrew to Indian, just north of the water tank. Length 0.3 miles, 150 vertical feet elevation change, offers some rock stunts at trailside marked by diamond posts. Some easier shortcuts have appeared 11/08 - the shortcuts offer an easy climbing route and connect to the upper portion of Zag. Top N40 28.003 W111 45.027, bottom N40 28.043 W111 45.148.Corkscrew. North to south, it joins the top of White Dog, traverses the edge of the wilderness border, then plunges rapidly to the far south end of Lambert. From the south, it's a brutal climb. From the south, it's often used as a connector from the city trail to Flank. Length 0.7 miles, elevation change 220 feet. North end N40 28.101 W111 45.040, south end @ City Trail N 40° 27.656 W 111° 45.167.Flank. Short connector ties the bottom of Corkscrew to the water tank road to join River or Middle. Usually open year-round. Length 0.4 miles. South end at Corkscrew N 40° 27.699 W 111° 45.106 - North end water tank road N 40° 27.961 W 111° 45.317. (The south end of Flank lies on private land.)High Bench. North-south route on far western side of Lambert Park. Upper-intermediate. Forks off River at both northern and southern ends. Forested areas snowbound in winter. 1.1 mile, elevation change 130 feet. North end @ River Tr just after it forks off Middle near Box Elder road N 40° 28.533 W 111° 45.423 - South end @ church road N 40° 27.898 W 111° 45.341Indian: Short trail connects upper Zag (just below the road past the water tank) to Flank. North end at Zag N40 28.027 W111 45.155, south end at Flank N40 27.825 W111 45.177. Karma. Short optional route off River Trail, 0.3 miles. Forks off on northern end just after River crosses gravel road then bridge. Lambert Luge. Challenging route from the lower portion of Spring to High Bench, features tight turns, whoop-de-doos. After passing the connector to Ruin Trail, it's downhill only. No horses! Crosses Middle and River on the way down. 0.5 miles, elevation change 120 feet. North end @ Spring Tr N 40° 28.460 W 111° 45.323 - South (downhill) end @ High Bench Tr N 40° 28.212 W 111° 45.593. Access to downhill portion off Ruin @ N 40° 28.287 W 111° 45.327.Middle Spring. Serpentine narrow trail with tight turns and challenges, connects top of Spring to top of Rodeo Trail. Advanced. Climb or descend. 0.6 miles. Elevation change 150 feet. Bottom @ Rodeo Up N 40° 28.669 W 111° 45.028 - Top @ Spring Tr N 40° 28.648 W 111° 44.768Middle. Fairly straight north-south route, intermediate. "Main Street" of Lambert, with access to River, Rodeo, Spring, Ruin, Poppy, Ziggy. Usually open year-round. 1 mile, elevation change 130 feet. North end @ Box Elder paved road N 40° 28.540 W 111° 45.400 - South end @ water tank road N 40° 27.963 W 111° 45.340Poppy. Climbs from the Middle Trail up to the poppy field near the old homestead. Continues as Ruin Trail at the 3-way intersection with the Lambert Luge connector. Usually open year-round. Length 0.4 miles, elevation change 100 feet. Bottom end @ Middle Tr N 40° 28.000 W 111° 45.388 - Top at Ruin/Luge Connector N 40° 28.287 W 111° 45.327River. North-south route, intermediate. Usually open year-round. Access to High Bench trail at each end. 1 mile, elevation change 130 feet. North end @ Middle Tr N 40° 28.527 W 111° 45.390 - South end @ water tank road N 40° 27.963 W 111° 45.340River Alternate. When southbound, forks left off of River just after crossing the High Bench Road and the creek bridge at N40 28.517 W111 45.448. At first, runs to the east of River. Extends about 1/2 mile, crossing River as it crosses DT (N40 28.437 W111 45.501) near the water utility shed, then rejoining River from the west side at N40 28.394 W111 45.529.Rodeo Down. Downhill ONLY. No horses. Extends from the north side of the creek at the tippy-top of Spring (where the water comes out of the mountain, crossing bridges over the creek down to a thrill-a-second whoop-de-do down a wash. Very popular trail, usually snowbound in the winter, clears in March. 0.5 miles. 150 feet elevation change. Top @ N 40° 28.620 W 111° 45.757. Short connector to rodeo grounds parking @ N 40° 28.682 W 111° 45.033. Bottom joins Rodeo Up N 40° 28.560 W 111° 45.405Rodeo Up. Uphill ONLY. Climbing route to the top of Rodeo Down. Connects to Middle Spring to continue uphill. 0.5 miles. Bottom end via connector to Box Elder paved road N 40° 28.553 W 111° 45.392 - Upper end connect Rodeo Down N 40° 28.693 W 111° 45.034Ruin. From top of Poppy Trail to Middle Trail. Goes past old Lambert homestead. Features jumps when ridden top-to-bottom. Access to Lambert's Luge just before the first jump. Usually open year-round. Length 0.5 miles, elevation change 100 feet. Top at Ruin/Luge Connector N 40° 28.287 W 111° 45.327 - Bottom @ Middle Tr N 40° 28.027 W° 111 45.441Spring. Long loop, 400 feet climbing, upper intermediate to advanced. Recommend counter-clockwise. Not recommended in winter. Runs from center of Middle Trail, connects to Middle Spring at top, curves around to connect to Rodeo Up. Access to north end of Lambert's Luge just before crossing Box Elder road. 2 miles. South end @ Middle Trail N 40° 28.379 W 111° 45.438 - North end connects Rodeo Up N 40° 28.681 W 111° 45.207. (Shortcut off beginning of Middle near Box Elder Road @ N 40° 28.527 W 111° 45.390)White Dog. Winding trail connects upper Zag and Ziggy (near the private property border) to Corkscrew, 0.4 miles. Climbing or downhill, intermediate technical with a couple of alternate-line stunts. Rebuilt following 2013 flood to be less strenuous on the climb. Bottom N40 28.106 W111 45.141, top N40 28.103 W111 45.039.Wildcat. Trail plunges from southbound Corkscrew all the way to High Bench Road across from the High Bench Trail. Fairly high-speed downhill, tough climb. Length 0.4 miles. Top N40 27.921 W111 44.989, Bottom N40 27.903 W111 45.337. Zag. Back-and-forth meandering trail takes its time climbing from the base of Ziggy to the middle of Ziggy near the Corkscrew fork. Length 1 mile, elevation change 150 feet. Downhill end on southern downhill Ziggy @ N 40° 27.998 W 111° 45.370 - Uphill end where Ziggy and White Dog meet N40 28.106 W111 45.141. Ziggy. As DH, starts top of White Dog, connects to top of Zag (and bottom of White Dog), then descends to Middle Trail. As climber, connects via ZPC to Poppy then up to White Dog. Upper portion (above Zag) has climbing route DH-only route in trees. Upper section may have deep snow in winter. Jump, gap jump. Length 0.8 miles, elevation change 300 feet. Southern (downhill) end @ Middle Tr near water tank road N 40° 27.973 W 111° 45.363, top N40 28.103 W111 45.039.ZPC. Ziggy to Poppy Connector is a short trail that ties Ziggy to Poppy, with a Y-fork at the south end to smooth the uphill vs downhill connection to Ziggy. It offers southbound riders a climbing connection to the upper mountain without descending to Middle. Southbound, it forks left off Poppy at N40 28.145 W111 45.281 just after it exits the trees and begins descending in earnest. Descending riders can veer off Ziggy and head for Ruin or Lambert Luge for alternate downhills. It forks right off Ziggy about 0.2 miles from Zag at N40 28.100 W111 45.266. Length 0.2 miles Courtesy of Singletracks.com