Historic landmarks were designated in the Comprehensive Plan via an inventory and updated in 1994.  Protected by Environmental Protection District #4, these resources have additional review criteria for development applications that may impact the sites or structures.

The inventory lists the following sites:

1. Oregon Trail: This east-west route was the highway to the Northwest that ended
in The Dalles.
2. Barlow Road and Cut-off Road: This was the alternate route to the Willamette
Valley from the east. The former route was the Columbia River, which was a
costly and dangerous trip. The road was built in 1845-6 by Samuel K. Barlow.
3. The Dalles Military Wagon Road: This was the main military road to interior
Oregon from Fort Dalles.
4. ** Jonah H. Mosier Sawmill Site.
5. Lower Fivemile School.
6. Mt. Hood Flat School.
7. Lower Eightmile School.
8. Mill Creek Grange.
9. Wolf Run Community Hall.
10.Center Ridge School
11.Columbia Hall
12.**Bear Springs Camp Shelter (owned by the U.S. Forest Service)
13.**Wapinitia School/Gym (school is demolished)
14.White River Dam
15.Old White River Station Camp (owned by the U.S. Forest Service)
16.Pine Grove School
17.Jersey School
18.Lower Antelope School
19.Fivemile Rapids (National Register of Historic Places) listed 1974 (Site not
identified on GIS to protect cultural resources)
20.Memaloose Island (eligible for placement on the National Register)
21.Abbott site near Wapinitia (eligible for placement on the National Register)
22.*Celilo Falls (#76)
23.Record Size Black Walnut (#67)
24.Old Fashioned Yellow Rose (#10)
25.Ox Yoke Monument (#70)
26.*Seufert Viaduct (#119)
27.*BNRR Bridge (#80)
28.Dalles Canyon City Road Bridge (#83)
29.Upper White River Canyon Grade (#12)
30.Hinton House (#7) (National Register of Historic Places)
31.Nansene (#66)
32.*Mark O. Mayer House (#30)
33.Friend Store, Post Office, and Real Estate Office (#125 & #49)
34.Thomas Slusher House (#51) – Removed from list via CPA-08-102
35.Wapinitia Hotel (#15)
36.OWRR&N Railroad Section House (#77)
37.Round Barn (#53)
38.Smock Prairie School (#14)
39.Friend School (#126)
40.Petersburg School (#128)
41.Fairbanks School (#71)
42.Clarno School (#65)
*Located in the Columbia River Gorge National Scenic Area
**listed on statewide register of historic areas