First -- Thunderbird. Then Silverbird. Then El Rancho Hotel & Casino. Then Fontainbleu (never opened). Closed for a time between each one.
So, no the El Rancho H&C sign not there any more.
And just for the record, El Rancho Vegas was on the other side of the street from these properties. Across from the Sahara. But just sits there as a vacant lot for decades ever since it burned down.