It's a great trip on skis if the conditions are right. Remember, April is ski season in the mountains, you wouldn't go up to Mammoth, which is much lower, expecting to hike to the top, and not deal with snow.
So you can expect that this is a ski mountaineering trip. Hiking in the snow, camping in the snow, melting snow for water, digging snow for a sleeping platform, climbing snow ridges. You'll love the backside of trail crest this time of the year:
Don't fall, next stop is 2,000 feet........
