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Community Celebration: 20 Years of the Blue Switch

A cache by brcross95 Send Message to Owner Message this owner
Hidden : Saturday, 02 May 2020
1 out of 5
1 out of 5

Size: Size: other (other)

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Geocache Description:

02 May 2020, 10:00 - 12:00

Geocaching is going to be 20 years old this year so we are having a party to celebrate.  So I hope you can join me and other geocachers to celebrate. Plus you can earn a special souvenir that will be added to your profile statistics.

When: May 2, 2020 from 10:00 am to 12:00 pm

Where: Blue Heron Park shelter

We will have a birthday cake, drawing for prizes, play games, and share stories of the last 20 years.


What is “Big Blue Switch” day?


On May 2, 2000, just past midnight, the U.S government discontinued its use of Selective Availability in order to make GPS more responsive to civil and commercial users worldwide. Twenty-four satellites around the globe processed their new orders, and instantly the accuracy of GPS technology improved tenfold. Tens of thousands of GPS receivers around the world had an instant upgrade. Prior to this date, only the military had the ability to receive accurate GPS readings. Now, the world and all its wonderful people could pinpoint their precise location. For reasons unknown, this is often referred to as the flipping of the “Big Blue Switch”.

The very next day, a computer consultant named Dave Ulmer hid a black bucket in the woods near Portland, Oregon. Along with a logbook and pencil, he left various prize items including videos, books, software, and a slingshot, then posted the coordinates online.

N 45° 17.460 W 122° 24.800

Three days later, the container was located by Mike Teague. Now, twenty years later, geocaching has become a global phenomenon to get off the couch and get outside.



Community Celebration Events - 2020

This Event is part of a limited release of Community Celebration Events to celebrate 20 years of geocaching. Geocachers hosted events between May 2, 2020 and December 31, 2020. Learn more about Community Celebration Events on the Geocaching Blog.

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