Nahanton Park (Field #4), Upper Falls (Fields #11 & #12),
Highlands (Field #13) & Countryside (Field #14)

Directions for all fields: from 128/95 take Exit 20A east (Rte.9). Proceed east on Rte. 9 then...
Field 4 (Nahanton Park). After 1.5 miles, exit R for Centre St. Left at end of ramp onto Centre St. Proceed 1.5 miles on Centre/Winchester. R at (small) Nahanton Park sign. Field is .3 miles (not visible).
Fields 11 & 12 ( Upper Falls). Immediate exit R for Chestnut St. 2nd R onto Chestnut. Field is .5 miles on R behind tennis courts.
Fields 13 & 14 (Highlands & Countryside). After 1.5 miles, exit R for Centre St. L at end of ramp onto Centre St., 1st L on Dedham St. Field 13 is immediately on L behind tennis courts. Field 14 is . 3 miles on R by school.

Click the map below to see a larger version.  Click on the aerial photographs below for Microsoft Live or Google Maps directions.
 

Click on the above image to see a larger version.

Upper Falls field map (click map below to get directions):

Nahanton field is in Nahanton Park.  Turn off Winchester Street and go all the way down the access road.  Click below for Microsoft Live directions:

Click here for Google Maps.

There is one large 11 v 11 field at Nahanton, and also four 6 v 6 size fields (which could support 5 v 5 or 4 v 4 play) are laid out for 3rd grade IM:
Nahanton field map, Spring 2008

Look for these signs on the left & right of the entrance respectively:

Highlands Field (aka Howard Whitemore Jr. Field)
Click on map below for Microsoft Live directions:
Newton Highlands Field aerial photograph