Elk Rock Island
Elk Rock Island is a island in Clackamas County, Oregon, recorded in the federal Geographic Names Information System as feature 1120464. It sits at 12.7 metres above sea level.
Federal profile, 2026
Everything below is the federal record for this place, with each value's source named.
| Name | Elk Rock Island |
|---|---|
| GNIS feature ID | 1120464 |
| Kind of place | Island |
| State | Oregon |
| County | Clackamas |
| Latitude | 45.43651 |
| Longitude | -122.64787 |
| USGS topographic map | Lake Oswego |
| First recorded | 11/28/1980 |
| Elevationcalculated | 12.7 mUSGS EPQS point lookup at the primary coordinate |
| Elevation (feet)calculated | 42 ftelevation_m * 3.28084 |
Other islands
Other places in Clackamas County
- Enid Lake
- Estacada Lake
- Fall Creek Falls
- Hillockburn Spring
- Little Crater Lake
- Memaloose Lake
- Middle Falls
- Mirror Lake
- Molalla River
- Mosier Creek
Questions
Where is Elk Rock Island?
In Clackamas County, Oregon, at 45.43651, -122.64787. The USGS records it on the Lake Oswego topographic map.
How high is Elk Rock Island?
12.7 metres (42 feet), read from the USGS 3D Elevation Program at the recorded coordinate.
What kind of place is Elk Rock Island?
The U.S. Geological Survey classifies it as a island in the Geographic Names Information System.
Where does this information come from?
The Geographic Names Information System, published by the U.S. Geological Survey, with elevation from the USGS 3D Elevation Program. Both are works of the United States government and are not subject to copyright in the United States.
Method and sources
The name, class, county and coordinates come from the U.S. Geological Survey's Geographic Names Information System, the federal register of place names. Elevation is read from the USGS 3D Elevation Program at the recorded coordinate. Values shown as calculated are arithmetic over those fields and are not separate measurements. Nothing on this page describes what the place is like to visit: no one writing it has been there, and the federal record does not say.
- USGS Geographic Names Information System (GNIS), Domestic Names, 2026
- USGS 3DEP Elevation Point Query Service