Not sure what trail the other folks took but the Chimney Pond Trail is an exceptionally beautiful trail.
If I could give this trip a '6' I definitely would and probably deserves more. While it's only 3.3 miles in from Roaring Brook Campground the elevation gain can be demoralizing on a hot day, with black flies & tourists all around you. HAHA! The hike is beautiful with several streams crossing the trail, wooden bridges, ponds with glimpses of the majestic mountain you are about to view. Chimney Pond is located at the heart of Ktaadn (Katahdin, The Teddon, Mounument Peak etc) - my most favorite mountain, feared by the natives & protected by Pamola - the winged creature with the head of a moose, upper body of a man and legs and talons of an Eagle. The trail is heavily traveled and well maintained by the folks at Baxter State Park. You can take this trail to the Pond just to soak in the views of the mountain or you can take it and then choose your route to the summit via several routes of varying difficulty. If you're new to hiking - take the Saddle Trail. If you like pain & suffering - take Cathedral. If you want to cross the legendary Knife Edge and visit Pamola on his peak then take the Dudley Trail. When you arrive at Chimney Pond you can visit the Ranger in his/her cabin, sign in and then view from Pamola Peak to Hamlin Peak (Baxter Peak cairn is visible via binoculars) Baxter Peak & Hamlin Peak are on the AMC NE 4,000 footer list and can be summited both in one day - long day, but great. My 8 year old did it last year. But he's a rock star.
Best, Kasey Marsters