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Using the TreeKeeper Interactive Map, you can identify public right-of-way trees in the adjacent to your Denver property.

Instructions for using TreeKeeper

  1. Follow the link
  2. Type your address in the search bar in the upper left corner (or search using map navigation)
  3. Click on any visible green diamonds around your house. A pop up will open and tell you the species of the tree and the address it is associated with

Simple ways to identify ash trees

Opposite branching


By opposite branching, we mean the branches protruding from tree limbs have a mate protruding from the exact opposite side of the same limb. Only ash, maple, dogwood and horse chestnut trees have opposite branching.

Compound leaves

Ash leaves typically have 5-9 leaflets per compound leaf

A simple leaf is defined as a single leaf that has a bud at the base of the leaf stem. Conversely, a compound leaf (the sort you’re looking for) is defined as having more than one leaflet per leaf connecting to a stem that has a bud at its base. Ash tree leaves typically have 5-9 leaflets per leaf.

Diamond-pattern bark

White ash tree bark with diamond pattern

While this identification method may not be as helpful when it comes to young ash trees (they typically have smoother bark), the bark on more advanced ash trees tends to have distinct diamond patterns.