RoadsideThoughts
A Gazetteer for the United States and Canada
Home >> State of California >> Riverside County >> Eagle MountainIndex...










Learn About
The Commemorative
Quarter for
California


The Commemorative Quarter for California







Welcome to Eagle Mountain ...

So far, we found very little information about Eagle Mountain. The little that we've found leads us believe that the community is historic.<1>

We've added Eagle Mountain to our Gazetteer with the hope that we can develop more information. If you can help us with Eagle Mountain, please Contact Us.


Eagle Mountain would have been located within present day Riverside County<2>.

While we don't have a date for the founding of Eagle Mountain, you might consider that their post office opened  in 1951.

A typical abbreviation for Eagle Mountain: Eagle Mtn. (or less commonly used: Eagle Mntn.)

While the community is gone, the present day location for Eagle Mountain is 1,360 feet [415 m] above sea level.<3>.

Time Zone: The area where Eagle Mountain was located is in the Pacific Time Zone (PST/PDT) and observes daylight saving time

The Area Codes where Eagle Mountain was located: 760 & 442<4>

Communities Also Named Eagle Mountain ...

Using our Gazetteer, we found that there are 4 communities that are also named Eagle Mountain - they are located in Ontario, Texas, Utah and Virginia.

For more information, see our Tidbits & Trivia Page for Eagle Mountain.

Communities near Eagle Mountain ...

We have created a list of 4 communities that are near Eagle Mountain.

Adding Eagle Mountain to Our Gazetteer ...

We originally found mention of Eagle Mountain in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.

From our notes, the earliest published mention we've found for Eagle Mountain was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<7>

X2X - From that list, the Eagle Mountain post office opened in 1951.

For more details, see References and Mentions for Eagle Mountain.

The official website for Riverside County: www.co.riverside.ca.us/

The official website for State of California: https://www.ca.gov/

Footnotes ...

<1>We use the term 'Historic' broadly and it generally means that the community no longer exists. However, it can also mean that the community might still exist, but was significantly larger or had a more 'official' existence in the past than it does now. Unfortunately our sources of data have proven to be unreliable. If you can provide us with more specific information about Eagle Mountain, please let us know so that we can improve our accuracy.
<2>If you're interested in how the shape of California's counties, including Riverside, have changed over time, we recommend the Atlas of Historical County Boundaries.
<3>The elevation is an estimate for the area around Eagle Mountain - it will be higher in some places and lower in others.
<4>When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 760 code has been Overlayed with the 442 area code. New phone numbers in the Eagle Mountain area will be assigned with one of these codes: 760 or 442. As a result, placing a call in the Eagle Mountain area will require 10-digit dialing (where you enter both the area code and then the phone number).
<5>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<6>The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required.
<7>A copy of their list with background information can be found at:

      https://cblevins.github.io/us-post-offices/data-biography/









 

Copyright 2025
All Rights Reserved

Thank you for visiting our website.

In closing, please keep in mind that we can not guarantee the accuracy or timeliness of the information on this website, so use with care. We encourage you to double-check the information that is critical to you.

If you've found an error or have additional information that you would like to share, please don't hesitate to write: Click here to contact us.

This page was last modified/updated: 28 Apr 2025