Hmm, definitely pays to keep up with lift closures.
Snowbird: Baby Thunder, mid-March
Solitude: Honeycomb, April 1 (lift only, Canyon open, take cat track to Eagle)
Snowbasin: Allen Peak Tram, April 1
Park City: night skiing closed
Alta: Supreme, April 8
Any others of importance for those of us traveling to ski around SLC in the next week or two?