RoadsideThoughts
A Gazetteer for the United States and Canada
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Welcome to Twin Rocks ...

Twin Rocks is located in Tillamook County<1>.

While we don't have a date for the founding of Twin Rocks, you might consider that their post office opened in 1914.

Twin Rocks is near sea level<2>.

Time Zone: Twin Rocks lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time

Area Codes for Twin Rocks: 503 & 971<3>

Communities Also Named Twin Rocks ...

Using our Gazetteer, we found that there are 2 communities that are also named Twin Rocks - they are located in California and Pennsylvania.

For more information, see our Tidbits & Trivia Page for Twin Rocks.

Communities near Twin Rocks ...

We have created a list of 10 communities that are near Twin Rocks.

To Help With Your Genealogy Research ...

We have a couple of sections for those tracing their genealogy.

We created a list of cemeteries that are in the area around Twin Rocks. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Twin Rocks.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Twin Rocks. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Twin Rocks.

We also have a detailed list of newspapers that have been published in the area around Twin Rocks. See our Newspapers Page for Twin Rocks.

TripAdvisor Tourism Pages for Twin Rocks ...

Looking for more information about Twin Rocks? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.

While we are unaware of a Tourism page that is specific to Twin Rocks, there are neighboring communities that do have Tourism pages. A map of those communities can be found with our TripAdvisor Page for Twin Rocks.

Adding Twin Rocks to Our Gazetteer ...

We originally found mention of Twin Rocks 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 (so far) for Twin Rocks was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<5>

From that list, the Twin Rocks post office opened in 1914. The Twin Rocks post office closed in 1954.

For more details, see References and Mentions for Twin Rocks.

Footnotes ...

<1>If you're interested in how the shape of Oregon's counties, including Tillamook, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The elevation is an estimate for the area around Twin Rocks - it will be higher in some places and lower in others.
<3>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 503 code has been Overlayed with the 971 area code. New phone numbers in the Twin Rocks area will be assigned with one of these codes: 503 or 971. As a result, placing a call in the Twin Rocks area will require 10-digit dialing (where you enter both the area code and then the phone number).
<4>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<5>A copy of the Blevins & Helbock Post Office list with background information can be found at:

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