Southwest Ridge: The Complete MTB Guide
Southwest Ridge sits in the southwest corner of Las Vegas, off Highway 160 near Blue Diamond. The trail system is distinct from Bootleg Canyon and Red Rock: no bike park infrastructure, no paved access, just raw desert ridge riding with technical rock ledges, ridge exposure, and descents that reward commitment.
Table of Contents
Overview & Location
Southwest Ridge is located off Highway 160, roughly 20 to 25 minutes from the Las Vegas Strip, west of the Blue Diamond junction. There is no bike park infrastructure here. The trailhead is a gravel lot on the north side of Hwy 160, and the approach to the ridge is a rough jeep road of about a mile each way. What awaits on the ridge is a set of trails that are fundamentally different in character from anything else in the Las Vegas area: raw technical terrain, genuine exposure, and descents built around natural rock features rather than shaped flow.
Where Bootleg Canyon is volcanic and purpose-designed for downhilling, and Red Rock Canyon is sandstone cross-country, Southwest Ridge occupies its own niche. The trails traverse and descend a rocky desert ridgeline, with drops ranging from small rock ledges to the multi-foot moves on Bipolar and Happy Ending. The most popular trail, Bipolar, consistently ranks as one of the top-rated trails in the Las Vegas area on Trailforks.
Quick Facts
- Trailhead: Gravel lot, north side of Hwy 160, west of Las Vegas
- Coordinates: 36.02594, -115.31737
- Distance from Strip: ~20 to 25 minutes
- Trail miles: ~10 miles of singletrack
- Terrain: Rocky desert ridgeline, natural rock drops, exposed traverses
- Access: Free, no fee, gravel parking lot
Trail Difficulty Breakdown
Southwest Ridge skews intermediate to expert. There are no true beginner trails on the ridge itself. Access trails from the trailhead and the jeep road approach are manageable for most riders, but the ridge singletrack starts at blue and escalates quickly.
| Difficulty | Trails | What to Expect |
|---|---|---|
| Green (Easy) | Access trails, jeep road approach | The roughly one-mile jeep road from the trailhead to the ridge. A sustained but manageable climb on a doubletrack surface. No technical riding. |
| Blue (Intermediate) | Good Call, Legalize It | Fast flow and rock drops on Good Call; ridge traverse with ledges and mild exposure on Legalize It. Both reward confident handling but do not require expert-level commitment. |
| Black (Advanced) | Menny Thanks, Bipolar | Punchy technical climbs, drops ranging from 8 inches to 4 feet, and genuine ridge exposure. Bipolar adds large drops including a 5-foot mandatory hit. These trails ride harder than a typical black. |
| Double Black (Expert) | Happy Ending | Downhill-only. Steep natural rock work including "the spine" and "the problem". Committed expert riding only. No line choices that avoid the crux features. |
Key Trails at Southwest Ridge
Good Call is the preferred climb to the ridge: fast flow with rock drops and berms that make the approach feel less like a chore. It sits at a blue difficulty and connects well to the upper ridge network, making it the natural starting point for any loop at Southwest Ridge.
Best on: Trail or enduro bike
Legalize It traverses the ridge and crosses both Menny Thanks and Good Call. It carries blue difficulty with ledges, rocky obstacles, and sections of mild exposure. The trail links the upper ridge together and is a useful connector for building longer loops.
Best on: Trail or enduro bike
Menny Thanks is a roughly 6-mile counterclockwise loop: a punchy 1.5-mile climb followed by a ridge traverse with drops ranging from 8 inches to 4 feet and genuine exposure. It is rated black, and it rides like one. The exposure on the traverse sections is real. Riders who underestimate the trail based on its overall length tend to get surprised by the technical commitment required on the descent.
Best on: Trail or Enduro bike
Bipolar branches off Menny Thanks and earns its name. The trail opens with a flowy, manageable start before transitioning into a rowdy finish with a succession of large drops, including a 5-foot move known as the Big Drop. The contrast between the beginning and end of the trail is sharp. If you are comfortable on Menny Thanks, Bipolar is the natural next step.
Best on: Trail or Enduro bike
Happy Ending is the most difficult trail at Southwest Ridge. It is downhill-only, rated double black, and built entirely around natural rock features. The crux sections are known as "the spine" (steep, sustained rock work) and "the problem" (a natural rock roll that leaves no easy option). There are no bail lines around the hard moves. This trail is for expert riders who have already tested themselves on the black trails above.
Best on: Enduro or DH bike. Downhill-only direction.
Recommended Loop
The Standard Southwest Ridge Loop
Based on rider feedback, the most-recommended route at Southwest Ridge follows this sequence:
- Good Call up to the ridge (blue, preferred climb for its flow and rock drops)
- Legalize It along the ridge traverse (blue, connects the upper network)
- Menny Thanks CCW loop descent (black, punchy and exposed)
- Bipolar off Menny Thanks for the rowdy finish (black, includes the Big Drop)
Expert riders can add Happy Ending at the end of the loop for the double-black natural rock descent. The full loop with Happy Ending is a complete Southwest Ridge experience, but Menny Thanks and Bipolar alone are worth the drive.
Parking & Getting There
The trailhead is a free gravel lot on the north side of Highway 160, west of Las Vegas. There are no facilities, no entry fee, and no shuttle service. Parking is straightforward: pull off Hwy 160 at the gravel lot and cross the detention basin or dirt road. The jeep road approach to the ridge is approximately one mile. Budget around 20 to 25 minutes of drive time from the Strip.
Tip:
There are no water sources at the trailhead or on the trail. Bring more water than you think you need, particularly in spring when the climbs are demanding and temperatures can rise quickly midday. A minimum of 2 liters for a standard loop; 3 liters in warmer months.
Best Season & Trail Conditions
Southwest Ridge follows the same Mojave Desert seasonal pattern as the rest of the Las Vegas trail network. The ridge sits at slightly higher elevation than the valley floor, which provides a marginal temperature advantage in summer, but heat management is still the primary concern from June through August.
Seasonal Conditions at Southwest Ridge
- October–November: Excellent. Cooling temperatures, firm trail surfaces, and comfortable conditions for the technical climbing and descending. One of the best times to visit.
- December–February: Good. Mild winter days in the 50 to 65°F range. Rain is infrequent but can make rocky surfaces slippery. Check conditions before riding.
- March–May: Peak season. Best conditions of the year. Firm trails, comfortable temperatures, and long daylight hours make this the optimal window for tackling the harder lines.
- June–September: Extreme heat. The ridge offers limited shade and the exposed approach road intensifies the effect. Manageable only with pre-sunrise starts. Carry 3 or more liters of water. Most local riders avoid midday riding entirely during these months.
The natural rock features that define Southwest Ridge are largely unaffected by typical desert rain events. Unlike volcanic terrain at Bootleg Canyon, the hard desert rock here drains quickly. Check local trail reports after significant rain, but recovery time is generally shorter than at other Las Vegas trail systems.