According to the California Travel and Tourism Commission:
83% of visitors to California are Californians exploring their state.
13% come from Arizona and Nevada. (2007) This data has been verified by regional surveys of the Mammoth and Lake Tahoe Visitor.

The Travel Industry Association (TIA) in a April 2006 study concluded that:
87% of all high end travel is purchased via the Internet. and that
61% used the Internet to purchase their most recent vacation.

Mammoth visitors are broken into two groups, Winter, a much more affluent group, and the Summer Visitor which is more of an adventurer. The following stats were taken from the initial surveys of Mammoth travel in 2001.

MAMMOTH REAL ESTATE
$800,000 is the average priced home in Mammoth (2007)
SUMMER VISITOR
78% of summer visitors are from Southern California
24% of visitors come for the first time
10% of summer visitors come in Fall, 17% in Spring

SUMMER USE OF INTERNET
35% of summer visitors learned about Mammoth from a website
7% of visitors learned about Mammoth from a brochure
5% learned about Mammoth from a press article
37% looked up weather via the Internet
43% of visitors identified lodging choices via the Internet
33% booked part of their trip via the Internet

WINTER VISITOR
84% of visitors to Mammoth are from Southern California
89% of visitors travel to Mammoth more than one time per winter
14% of visitors are first timers
74% of visitors travel via private car
25% of visitors don't ski in the winter

WINTER USE OF INTERNET
61% of visitors s have household income over $150,000
14% of visitors learned out about Mammoth from a website
8% of visitors learned about Mammoth from a brochure
6% of visitors learned about mammoth from press articles

65% of visitors use the Internet to find out weather information
48% of visitors identify lodging choices via the Internet
14% of visitors use the Internet to book part of their trip