In order to find this cache, begin at Shaker
(Shady) Glen, Woburn (GCQDQ5). Once arriving,
follow the trails and you will need to take a waypoint at the first
and third bridge on the trail.

1. Locate first bridge and mark a waypoint at west end of bridge,
call this Waypoint A....Bridge #1 -
12/10/05
2. Locate second bridge and stop and experience the beauty of the
rippling water. ...Bridge #2 -
12/10/05
3. Locate third bridge and mark a waypoint from the center of the
bridge, call this Waypoint B. ...Bridge #3 -
12/10/05
You might want to continue Shaker (Shady) Glen, Woburn .
It requires perseverence and stamina, but is well worth the time.
The Conservation area is full of wildlife and will provide outcrop
lookouts and waterfalls.
Here is where your calculation and plotting skills are
needed.
4. Plot a circle with a radius of 1.01 miles from Waypoint A.
5. Plot a circle with a radius of 0.68 miles from Waypoint B.
6. Determine their intersection to locate the taller of the
signs.

You can validate your puzzle solution
with certitude.
However, the location may be confirmed by using the
following checksum:
Add the letters in the name of the street you are on (one word)
to the number on the closest house.
7. Nearby the intersecting point, you will find a tall sign.
Multiply the number of letters in the fourth word by 3 to derive
the number of yards you need to walk along the trail to find your
next set of coordinates...N42°AB.PQR W071°CD.XYZ Note: AB
and CD are the same as in #7.
8. Cache On !!
Photos taken December 04, 2005:
...Bridge #1 -
12/04/05
...Bridge #2 -
12/04/05
...Bridge #3 -
12/04/05