Tom's Thumb, North Side is about 3.7 miles long and located in Scottsdale, Arizona. Best cross streets to use are Dynamite and 128th St.
Tom's Thumb is the prominent granite bump in the McDowell Mountain preserve. Easily visible from the Scottsdale area, Tom's Thumb Trail from the north side provides some great views of Phoenix as well as looking out toward Four Peaks and Weavers Needle.
From Scottsdale Rd or Pima Rd, turn East onto Happy Valley Rd. Proceed about 2 miles past Alma School and turn right (East) onto Ranch Gate. Proceed to the end of Ranch Gate and then turn right (South) onto 128 St and you'll arrive at the trailhead in less than a mile. - See more at: http://www.mcdowellsonoran.org/trailhead/displayLocation/8#sthash.s1zu1sYO.dpuf
Recommend that you bring at least 1 liter of water.
Hike is around ~2 hours long.
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