[Geysers] Rainbow Springs question

[snorkology at sysmatrix.net]

Hi all,

Thanks to Lee for correcting me on the name of Rainbow Springs. It brings
up a question though---am I to assume that there is  more than one spring
out there with the oily surface sheen? I have essentially no information
on hand regarding these features, in fact I've never even seen a photo of
them. If anyone has one I'd like to see it.

                                    Grover Schrayer