Blue Mountain Resort on Instagram: "Blue Mountain is OPEN! 🎉 Thanks to everyone who joined us at first chair! Now who’s ready to ski PA’s MOST OPEN terrain?! 🙋‍♂️ 🎿 We’ve got 13 trails open today - with more on the way tomorrow including Lower Main Street & Midway 👀 That’s a THIRD of the mountain ready for you on day 1 🫡 🎵 Catch live music tonight at Slopeside with Alex O’Brien from 6PM-9PM ❄️ The snowmaking team has the guns FIRED UP - and will continue all weekend long! The guns are LOVI