50mi February ultramarathons in United States (East Coast)

Deep snow, dramatic winter conditions, historic drawbridge crossing, and scenic towpath from Wide Water’s Marina in Lockport, NY

Point-to-point ultramarathon along Florida’s Space and Treasure Coasts, with ocean views, historic sites, and passage through beach towns

South Mountain Reservation trails in Maplewood, with a roughly 10-mile wooded loop format for 50K and 50-mile distances.