Burning Man 2011, Black Rock Desert, Nevada, United States

The innermost street is named the Esplanade, and the remaining streets are given names to coincide with the overall theme of the burn, and ordered in ways such as alphabetical order or stem to stern, to make them easier to recall. For example, in 1999, for the "Wheel of Time" theme, and again in 2004 for "The Vault of Heaven" theme, the streets were named after the planets of the solar system. The radial streets are usually given a clock designation, for example, 6:00 or 6:15, in which the Man is at the center of the clock face and 12:00 is in the middle of the third of the arc lacking streets (usually at a bearing of 60° true from the Man). These avenues have been identified in other ways, notably in 2002, in accordance with "The Floating World" theme, as the degrees of a compass, for example 175 degrees, and in 2003 as part of the Beyond Belief theme as adjectives ("Rational, Absurd") that caused every intersection with a concentric street (named after concepts of belief such as "Authority, Creed") to form a phrase such as "Absurd Authority" or "Rational Creed". However, these proved unpopular with participants due to difficulty in navigating the city without the familiar clock layout.
The Black Rock City Airport is constructed adjacent to the city, typically on its southern side. The airport serves a variety of aviation traffic, including private airplanes, helicopters, hot air balloons, ultralights, gliders, and skydivers.