Mt Baldy spreads across roughly 800 acres (324 hectares) on the southern flank of Mount San Antonio, with 26 runs falling from about 8,600 ft (2,621 m) to a base near 6,500 ft (1,981 m). That gives a vertical of 2,100 ft (640 m), among the largest in Southern California. The split is unusually steep for the region: 20% beginner, 40% intermediate, 20% advanced and 20% expert. Four double chairlifts do all the hauling, so the mountain feels old-school, with terrain left natural and few concessions to the crowds that arrive on weekends.

Thunder Mountain is the part to know, a north-facing zone where steep groomers, bumps and natural chutes give Southern California its most serious inbounds skiing. The summit zone around the Notch adds exposed ridgelines and open pitches that hold their snow longer than the sunnier slopes. Beginners and cautious intermediates have their own gentler lifts near the base. Conditions depend heavily on natural snowfall, since snowmaking is limited. Mt Baldy suits confident intermediates and advanced skiers who want real vertical and a no-frills day within reach of Los Angeles.

The 2025-26 season opens 13 December 2025 and closes 8 March 2026, spanning 86 operating days. Season length depends entirely on natural snowfall, with some years extending into April when conditions permit. Operations remain weather-dependent without significant snowmaking beyond a small tubing area. Lift access continues year-round for hikers and mountain bikers outside winter months.

Mt Baldy averages 2.79 metres of annual snowfall, equivalent to 110 inches. The base sits at 1,981 metres whilst the summit reaches 2,621 metres, providing natural snow advantages over lower-elevation Southern California areas. North-facing Thunder Mountain slopes hold snow longer than south-facing terrain. Base depths fluctuate dramatically between storm cycles, with the resort occasionally closing mid-season during extended dry periods.

January and February deliver peak snowfall and coldest temperatures for optimal powder conditions. March brings spring corn snow and warmer weather, allowing morning ski sessions followed by afternoon beach visits. December and early-season conditions prove unreliable. Weekday visits avoid Los Angeles weekend crowds that pack the limited car parking by 9am during powder cycles.

The resort hosts no major annual events beyond general operations. Night skiing does not operate. Summer operations include scenic chairlift rides, hiking access, mountain biking, tent cabin camping and live music events. The resort operates as a year-round mountain recreation area rather than a winter-only ski facility.