Guide

Look closerLandscape

Wolf trees: old open-grown giants inside young woods

All year

A wolf tree is a huge, old, wide-crowned tree with thick limbs low on the trunk, standing among straighter younger trees. It grew up in open ground, so it likely marks a spot that was once a pasture or field edge.

Why this time of year

Much of New England's woods grew back on farmland abandoned in the 1800s, and the old trees left standing in them still keep the open-ground shape they grew as young trees, in every season.

How to notice it

  1. Scan the woods for one tree much thicker than its neighbors, with big limbs that start low and spread wide, instead of a tall bare trunk.
  2. Compare it with the younger trees around it, which are straight with bare lower trunks and branches reaching up. The odd one out probably grew in the open.
  3. Look nearby for a stone wall or a pile of stones. A wall of only large stones likely bordered pasture, and a wall with lots of fist-sized stones likely bordered a crop field.
  4. Stay on the trail and notice any cavities or hollows from there. Do not climb it, and keep out from under big dead limbs.

Try this with kids: Find the one tree whose arms start lowest and reach widest, then look from the trail to see if you can spot a stone wall nearby.

Phrase to know: A “wolf tree” is an old open-grown tree that was left standing while younger forest grew up around it.

Safety

  • Do not climb wolf trees or stand under large dead limbs; look from a safe distance.
  • Walls and old pastures may have uneven footing; step carefully and do not pull stones off walls.

Sources

  • blog.nature.orgThe Nature Conservancy (conservation nonprofit). Wolf trees also called pasture trees, thick low limbs, old large trunk; 'evidence that the forest was once a livestock pasture'; farmers left them for animal shade; 'They're easiest to spot in winter'; walls of larger stones usually bordered pasture, fist-sized stones usually bordered crop fields; walls are 'a sure sign' of former pasture or cultivated field. Refute pass exact wording: 'If the wall has lots of fist-sized stones, it likely bordered a cultivated field' and 'if you find a wall with only larger stones, it likely bordered a grazing pasture'; region cleared 'between 60 and 80 percent'.
  • northernwoodlands.orgNorthern Woodlands (regional forestry magazine). Old 'wide-spreading pasture trees' 'engulfed by young woods' after abandonment; big limbs, horizontal branches, cavities; shaded trees' lower branches die and surviving branches reach straight up; some 'intentionally left as shade trees for cattle and sheep', others 'sprouted up later around rock outcrops, stone piles, or fences'. Studied a dry oak forest and a maple-ash-hickory forest.
  • harvardforest1.fas.harvard.eduHarvard Forest 1941 diorama booklet (PDF). Around 1830-1850 peak clearing: 'percentage of land cleared ... variously estimated at from 60 to 75'; 'In some of the neighboring towns to the south, no less than 80 percent was cleared'; 'close network of stone walls and the innumerable piles of stones' show the labor of clearing; 'some one hundred years later, the percentages of cleared and forested areas are reversed.' Local to one central Massachusetts area, not a statewide figure.
  • eurekalert.orgUniversity press release (Northeast-wide): in the 18th and 19th centuries 'more than half the forestland was cleared for agriculture and cut for timber'; 'Most farms were eventually abandoned, and during the 20th century, forests returned.'

Checked against these sources on October 30, 2026.

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