|
|
Name
|
Image
|
Date
|
Location
|
County
|
Ownership
|
Description
|
| 1 |
Crown Point |
 |
1971 |
45°32′22″N 122°14′39″W / 45.5395°N 122.24422°W / 45.5395; -122.24422 (Crown Point) |
Multnomah |
state park |
Promontory in Columbia Gorge
|
| 2 |
Fort Rock State Monument |
 |
1976 |
43°22′19″N 121°04′26″W / 43.372°N 121.074°W / 43.372; -121.074 (Fort Rock) |
Lake |
state park |
Volcanic tuff ring
|
| 3 |
Horse Ridge Natural Area |
 |
1967 |
43°55′26″N 121°02′20″W / 43.924°N 121.039°W / 43.924; -121.039 (Horse Ridge)[2] |
Deschutes |
federal |
Western juniper woodland on Bureau of Land Management property.[2]
|
| 4 |
John Day Fossil Beds |
 |
1966 |
44°33′21″N 119°38′43″W / 44.555833°N 119.645278°W / 44.555833; -119.645278 (John Day Fossil Beds) |
Grant |
federal |
Contains a remarkable sequence of very diverse fossils.
|
| 5 |
The Island |
 |
2011 |
44°33′31″N 121°16′38″W / 44.558489°N 121.277143°W / 44.558489; -121.277143 (The Island) |
Jefferson |
federal |
Native juniper savanna on an isolated plateau at the confluence of the Deschutes and Crooked Rivers. Part of Ochoco National Forest.
|
| 6 |
Lawrence Memorial Grassland Preserve |
|
1984 |
44°57′03″N 120°47′56″W / 44.950889°N 120.7988834°W / 44.950889; -120.7988834 (Lawrence Memorial Grassland Preserve) |
Oregon |
private |
An excellent illustration of "biscuit and scabland" topography.[3]
|
| 7 |
Newberry Crater |
 |
1976 |
43°41′21″N 121°15′18″W / 43.689194°N 121.254889°W / 43.689194; -121.254889 (Newberry Volcano) |
Deschutes |
federal |
Atypical shield volcano in Deschutes National Forest.
|
| 8 |
Mount Howard-East Peak |
 |
2016 |
45°15′40″N 117°10′44″W / 45.260987°N 117.178778°W / 45.260987; -117.178778 (Mount Howard-East Peak) |
Wallowa |
federal |
Contains botanically diverse montane grassland habitats and populations of endemic and rare plant species.
|
| 9 |
Round Top Butte |
|
2011 |
42°31′40″N 122°41′02″W / 42.5277551°N 122.68381°W / 42.5277551; -122.68381 (Newberry Volcano)[4] |
Jackson |
federal |
Exceptional native bunchgrass habitat. Located on Bureau of Land Management land.[5][6]
|
| 10 |
Willamette Floodplain |
 |
1987 |
44°21′50″N 123°13′48″W / 44.364°N 123.23°W / 44.364; -123.23 (Willamette Floodplain) |
Benton, Lane, Linn, Marion, Polk |
federal |
A bottomland interior valley grassland floodplain. Part of William L. Finley National Wildlife Refuge.
|
| 11 |
Zumwalt Prairie |
 |
2013 |
45°32′N 117°05′W / 45.54°N 117.09°W / 45.54; -117.09 (Zumwalt Prairie) |
Wallowa |
private |
Largest contiguous remaining tract of bunchgrass prairie in the nation.
|
