Your post motivated me to finally join-up with this group. It was Bobo's Bonanza in Lone Pine. Yes, the burgers were great - just the thing right before and right after backpacking in the Sierra! I first ate there on my way to the Rae Lakes back in '69 or '70. The good news is, it's still there, sort of. It's the Bonanza and the burgers are gone but the chili verde is awesome. You'll recognize the decor which hasn't changed much.
