Day 2 of Sarah Palin’s bus tour, and the former vice presidential nominee has prompted little more than confusion over exactly what she is up to.

Palin started Memorial Day at the National Archives in Washington, but the only reporters who made it to her brief media availability there were those who happened to see tourists posting on Twitter that they had spotted her.  Palin went to the Archives after unannounced visits to monuments and other landmarks in the nation’s capital on Sunday afternoon, following a brief ride at the annual Rolling Thunder motorcycle rally.

From there, it was to George Washington’s home at Mount Vernon, where reporters following Palin were able only to snap pictures of the former Alaska governor from a distance.  Though Fox News captured Palin saying, as she got off the bus at one stop, that she thought a Republican could beat President Barack Obama in next year’s election, she has done little to encourage belief that the trip is a precursor to a 2012 run of her own.

“This isn’t a campaign bus,” Palin said, according to reports. “This is a bus to be able to express to America how much we appreciate our foundation and to invite more people to be interested in all that is good about America and to remind ourselves we don’t need to fundamentally transform America, we need to restore what’s good about America.”

For supporters and reporters looking for more details, Palin isn’t providing them. Palin’s staff has been unresponsive to reporters’ requests or told them to check the SarahPAC website, which updates with information only after she’s stopped somewhere.

CNN reported Monday that some of Palin’s supporters had already started to gather midday at Gettysburg in hopes that she might be on her way. But by then, Palin’s bus was rolling into Mount Vernon, instead.  Indeed, Twitter is about the only way to follow the former Alaska governor — unless you’re Fox News host Greta Van Susteren or her husband, John Coale.

Van Susteren is traveling with Palin on Monday and is to conduct an interview inside the One Nation tour bus. Coale, who set up Palin’s political action committee in 2009 and serves as an informal adviser, was spotted with the Palin family at Mount Vernon.  But even Van Susteren doesn’t seem to know what Palin’s up to next.  “My producer, who talked to someone who works with her in order to set up the interview, told me last night that he would not tell her,” Van Susteren posted on her blog Monday. “We were told to check their website for any information they are releasing. He said they don’t want the media following them, and that includes us.”