Heritage Trees and Groves

Heritage Tree

OCMC 12.08.040 - Heritage Trees includes a process for the nomination of heritage trees on public and private property in Oregon City. Heritage trees are those trees that because of their age, species, natural resource value, ecological or historical association, are of special importance to the city.

The attached nomination form should be filled out completely by any party wishing to nominate a tree for heritage tree designation by the Natural Resources Committee for review, followed by City Commission review.

With the exception of trees on city property and right-of-ways, nomination is to be by the property owner or with the written consent of the property owner.

All heritage tree nominations, public or private, are to be approved by the City Commission at a noticed public meeting.

We strongly recommend that nominations include a report by a certified arborist that describes the size, species, and condition of the tree, as well as any hazardous or potentially hazardous conditions which may exist.

Property owners who consent to nomination of a heritage tree must also sign a protective covenant for the tree.

Tree owners will receive a plaque, certificate and formal recognition by the City. Heritage trees will be documented on the city website.


Heritage Tree Designations

To date, there are four officially designated heritage trees in Oregon City, all on private property.

Location Photo Species Est. Age Height/Spread D.B.H.*



19130 Lot Whitcomb Dr

(Ainsworth House)

Ponderosa Pine

(Pinus ponderosa)

150 yrs +150' / 75' 62" 4/8/12

916 Center St

(Dr. Clyde Mount House)

Oregon White or Garry Oak

(Quercus garryana)

250 yrs 50' / 87' 38" 4/8/12

712 12th St

(Edward Howell House)

Douglas Fir

(Pseudotsuga menziesii)

134 yrs 100' / 87' 39" 2/5/14
314 Pleasant Ave

Oregon White or Garry Oak

(Quercus garryana)

na 85' / 60' 41"  

*D.B.H. = Diameter at Breast Height



Heritage Grove Designations

Waterboard Park was designated as a Heritage Grove by the City Commission on 10/02/2013.

For the documentation, video and minutes from this meeting go to https://oregon-city.legistar.com/Calendar.aspx and select the 10/02/2013 City Commission agenda.


For more information about this process, please contact:

Pete Walter, AICP, Associate Planner

(503) 496-1568