I'm planning to hike from Crabtree Meadow to the summit on the JMT. Is Guitar Lake the last water on the way to the summit? Thanks.
Generally, yes. There are a couple of tarns within the first mile above Guitar that are usually reliable even in dry years (2013) but it would not be worth it to count on them and then have to retreat to Guitar to fill up. Plan on topping up at Guitar.
