750' (San Bernardino)
📍 California , San Bernardino County · Nearest city: Crestline (6 km)
48 XC score / 100 · takeoff at 753 m · 📍 View on map
Coordinates and external links
34.19960, -117.31700Forecast next days
Updated: 2026-04-19 16:26 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
No recomendable para volar, base de cúmulos ~1691 m, viento 22 km/h.
base ~1691m · wind 22 km/hNo recomendable para volar, base de cúmulos ~1990 m, viento fuerte (32 km/h).
base ~1990m · wind 32 km/hCondiciones marginales, base de cúmulos ~2047 m, viento 14 km/h.
base ~2047m · wind 14 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Takeoff orientations
Green = good orientation · Yellow = possible · Gray = not suitable
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 | 0.00 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
The 750' launch (~2500ft MSL) is so named because it is 750ft vertically above the Andy Jackson Airpark LZ (same typical LZ as Marshall). It is a less popular alternative to the Marshall launch but has some key advantages: (1) It is readily accessible from Andy Jackson via the dirt 2N40 forest service road (~10 min, moderate clearance recommended) or a 0.6mi hike on a foottrail (~30min, steep). (2) Being lower elevation, cloud cover is less of an issue than at Marshall. (3) The quick access and quick flights in non-thermic conditions are well suited for beginners (and others) to rack up a large number of flights in a short time frame (such as four flights before noon). (4) On particularly thermic days it is possible for a launch from 750' to gain altitude up to and in excess of Marshall, defeating the need for a shuttle. Hanggliders do not seem to use this launch. The launch is a 50'x80' dirt and gravel patch sloping SSW at the south end of the large pull out. A streamer on a pole gives some indication of wind. The launch area is less forgiving than Marshall (but again suited for beginners). Non-thermic flights are about 3-4min to AJX. Site is maintained by the Crestline Soaring Society. See links below for site protocols and access.
Rules and notes
http://www.crestlinesoaring.org/siteProtocols http://www.crestlinesoaring.org/instruction/PGsignoff
Pilot comments
Be sure and get a site briefing from a local. Non-CSS-members have to sign a waiver and pay a daily fee of 10USD! USHPA membership required! > see: http://www.crestlinesoaring.org/siteProtocols
Nearby sites
Marshall (San Bernardino) (69) · Crestline (San Bernardino) (68) · Rubidoux - The Rock (8) · Mentone (53) · Ord (39) · Elsinore (49)