Marshall (San Bernardino)
📍 California , San Bernardino County · Nearest city: Crestline (4 km)
69 XC score / 100 · takeoff at 1205 m · 📍 View on map
Coordinates and external links
34.21000, -117.30300Forecast next days
Updated: 2026-05-02 16:01 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Not recommended for flying, cloud base ~1134 m, strong wind (34 km/h).
base ~1134m · wind 34 km/hFlyable day, decent conditions, cloud base ~1170 m, wind 18 km/h.
base ~1170m · wind 18 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
🌬 Daily wind (next days)
Daily summary (10m wind). Full hour × altitude chart is being added progressively.
Takeoff orientations
Green = good orientation · Yellow = possible · Gray = not suitable
🗓️ Best season to fly (2024 climatology)
Monthly climate score: historical avg of temp, wind, rain and cloud cover. Green = optimal month.
⭐ Best month: May (100/100, 20°C, 19mm lluvia) · Worst month: Feb (45/100, 313mm lluvia)
Why this site has thermal potential
| Factor | Value | Interpretation |
|---|---|---|
| Hotspot density (5 km) | 12 | High |
| Avg thermal probability | 0.89 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.68 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
Marshall Peak is a forgiving gentle slope launch that drops off steeper. There is room to set up several gliders at once when the winds are southerly, which they usually are. Grasses around launch are trimmed from time to time but sticks in the lines are possible. The top of the peak is dusty dirt but it doesn't seem to stick to gliders much. The normal way up is to drive around the back in a truck, which takes about 1/2 an hour. Most of the distance is paved, with the last couple of miles being a dirt road in variable condition. Four wheel drive is not usually necessary, but some amount of clearance is helpful. Drive slowly on this road, as it is two way traffic with blind corners. Collisions do occur. It is also possible to hike up to launch, and elevation gain of about 2300 feet (700m). Be aware that rattlesnakes are common in the summer, and mountain lions and bears are sometimes seen. No mountain lion or bear attacks on people have been recorded, but hiking alone at sunset might not be the best idea. There is another launch 1200 feet (365m) higher in the town of Crestline. This launch is flat grass becoming steep quickly. It is often windier at Crestline; there are many days when Marshall is good for paragliding and Crestline is too windy. Hang gliders launch there more often than paragliders. On days with good lapse rates and light base winds it can be great for paragliding too. Driving to Crestline is all paved roads. Hiking is not an option unless you are an ironman or plan to camp half way.
Nearby sites
750' (San Bernardino) (48) · Crestline (San Bernardino) (68) · Mentone (53) · Ord (39) · Elsinore (49) · Menifee (39)