Whether a breeze of a hike or an arduous trek, take the time to carefully follow the trail, smell the flowers, and find this cache. While I am sure you have been following the trail the entire way, you will need to find a way off the trail a bit. I will recommend that you avoid a direct route off the trail to the cache. The cache is a green container hidden in a winter friendly type of hide.
Take your time looking for this one. It won't be hard to spot, though this kind of hide has been known to foil experienced cachers before.
Here's the trail info:
The trail to this cache is very rocky and wet. Stay on the trail for this one -- bushwhacking here is tough. The trail wanders in a direction that seems off course, but it gets you there.
From Route 9, take Haystack Road. Take the second left onto Chimney Hill Road. Turn right onto Binney Brook Road. This winds steeply up. At the stop sign, turn right onto Upper Dam Road and bear left at the next intersection. The trail head (see parking coordinates) is on your right, marked with a Haystack Trail sign.
Begin the hike on an old, rocky road. After about half a mile (Waypoint 1), turn left off the road. Do not continue to the reservoir. There's a micro cache (Needle in a Haystack) along this section to get you started. Follow the trail as it heads south and then begins to climb onto the ridge, eventually heading northward.
If you are going to the top -- The GMNF states that the trail is 4.8 miles round trip and averages 3-4 hours. I usually allow about two hours, round-trip and my measurements said it was about 4 miles. Use your own judgement to determine how long it will take you. Allow enough time, wear waterproof hiking boots, prepare for icy trails if it's cold and stay on the trail.