Three Sisters Loop Day 2
At mile 14.8 (6000') is a lake with campsites.
At mile 16.5 (6180') is the junction with the Park Meadow Trail #4075, which goes left (see Trail around Broken Top). There is a good drinking water stream. Nice campsites, but a little crowded. This is the last drinking water for a while. Stay right (Southwest). There’s no trail marker on the junction and we went the wrong way for awhile here adding 6 miles to our trip today.
At mile 18.6 is the Green Lakes Pass, the high point of this hike at 7000'. There is some really nice alpine scenery with great views of the Sisters. Many places that you could camp, but no drinking water, and it's pretty exposed if the weather is at all bad. There's a shortcut from here over to Camp Lake Camp Lake to Green Lakes Pass Off Trail.
At mile 19.3 (6660') is the junction with an unmarked trail that goes right around the other side of Green Lake. This joins back up at mile 19.4. You can go either way. Camping is only allowed at designated campsites marked with a post. This can be quite crowded.
At mile 20.6 is the junction with the Broken Top Trail #10. Stay straight (South). It's a little confusing here, there are several junctions within 1/4 mile. There are some nice places to camp down the Broken Top Trail that are not so crowded, see Trail around Broken Top.
At mile 22.8 (6000') is the junction with the Moraine Lake Trail #17.1. Go right (Northwest). Beyond here, the Green Lake crowds really thin out.
At mile 24.2 is Moraine Lake (6450'). This is the last opportunity to get drinking water for a while. There are campsites here, and within 1/2 mile to the West. Camping is only allowed at campsites marked with a post.