Yup from:
http://www.geocaching.com/faq.asp

*Do you have an FRS channel to find out if other Geocachers are in the 
area?*

Yes. The community has decided on channel 2 as the primary and 12 as the 
alternate FRS (Family Radio Service) channel. FRS radios are longer 
distance walkie talkies, like the Motorola Talkabout.

Brian Cluff
Team Snaptek

Team Coyote1022 wrote:

> Hi everyone!  Gordon of Team Coyote1022 here.   I was out this last 
> weekend Jeeping around and a thought crossed my mind.  Is there a 
> certain channel on the CB radio that fellow cachers use?  It would be 
> nice to be able to communicate with other cachers that may be in the 
> area if all of us where to monitor and use the same channel.  Just a 
> thought and I don't believe I've seen anything come up on this subject 
> to date.
>  
> By the way, congrats to all the caching teams and persons reaching a 
> milestone recently!  My caching has slowed down quite a bit due to 
> having to catch up on household repairs and chores.....   Mrs. Coyote 
> kind of laid the law down and this coyote doesn't want to sleep in the 
> DOG house!  LOL
>  
> Take care everyone and have a safe New Year!
>  
> Gordon :-)
> Team Coyote1022