Verdi is home to two of the closest Nevada casinos and RV parks to California on I-80: Terrible's Gold Ranch Casino, now known simply as Gold Ranch Casino, at Exit 2 and the Boomtown Reno at Exit 4. Nearby is the closest Cabela's to California.
Optus / Vodafone do share, but they are going their own ways. However new towers may still be built for both. Vodafone / Telstra have roaming capabilities using Telstra towers in some areas Hutchinson (3) / Vodafone have some shared towers Telstra / Hutchinson share towers
The Verizon towers only work if you use one of the two phone models that run on Verizon offered for sale by Straight Talk. The bring your own phone option to which you are referring will run on either the AT&T network or the t-mobile network through the use of a sim card.