Yes, it's Earth Science Week, has been all week since the 10th, will be all week through the 16th. As usual, the Nevada Bureau of Mines and Geology is doing it's own thing for Earth Science Week: a one-day field trip, held both this coming Saturday and Sunday, the 16th and 17th. The field trip is called, "In Search of Tufa, Tuff, and Tough Rocks." Go to that link to sign up.
These field trips are always good, are open to the public, and often have several geologists besides the main field trip leaders along for question answering. I'm sorry to say that I won't be making it this year.
For anyone interested, whether going or not, the road log for the field trip is already available online, check out some great pictures of tufa domes! On the trip - or if you follow the trip guide at a later time - you'll see tufa, tuff, and some granodiorite (the tough rocks). You'll also travel across some old Lake Lahontan shorelines, northeast of Reno, NV, near Pyramid Lake.