Here's the most recent drone video of the progress on Laurel as of 4/17. The most significant work is the redesign of Innsbruck trail on skier's far left. It is a much wider and straighter trail than the original which began as a roadway constructed in 1941. You can still see the hairpin turns on either side of the new Innsbruck. The other trail improvement is Deer Path which began life as Crossover rope tow then was recut to create Crossover trail sometime after the first top to bottom lift, a Constam T-Bar built in 1955. Broadway, to the skier's right of Innsbruck, was also saw some work as did Lower Wildcat which is the inside cut of the two fall line cuts on the skier's right side of the mountain. The newest cut to the right of Lower Wildcat is the new chairlift line which unfortunately will not have snowmaking. Construction of the new lift is just beginning. Also note the new snowmaking ponds.
Here's a trail map superimposed over an aerial photo taken before the construction began: