Four years after the last edition went out of print, a new map of Metrobus routes in Northern Virginia will become available next week.

The Virginia edition of the map also shows bus routes in the District on the reverse side.

The map costs $1 and will go on sale Monday at all Dart, Drug Fair and Peoples drug stores, at Giant and Safeway, at the Metro headquarters building, 600 Fifth St. NW, at Metro's eight bus division garages and at ticket and token outlets.

The maps also can be obtained by mail by writing Metro's office of marketing at the headquarters building.

The map includes all Metrobus routes and the 37-mile Metro subway system now in operation.

There are more than 1,700 bus route variations throughout the area, according to John Warrington, Metro marketing director. The map is printed in eight colors, and routes are color-coded, which Metro officials expect will help users understand a bus network that is regarded as one of the most complicated in the nation.

The map shows, in relatively simple form, the main outer trunks and branches of the routes and contains insets of downtown Washington and other areas where numerous routes converge.

The insets use curved arrows to show where routes turn corners, creating an image that one wag, speaking after last week's Metro board meeting, likened to a school of octopi holding an orgy. The technique was an effort to deal with areas such as Constitution Avenue in downtown Washington, which alone has 41 segments of routes, Warrington said.

In addition to the map, there is a guide listing each bus route, its normal destination and the general type of service -- all day, rush hour, weekend or late-night. An accompanying directory shows which routes serve tourist attractions and landmarks such as the Capitol and the White House.

Metro plans to issue new editions every six months, Warrington said. Revenue from sales will help pay for new editions, he added.