DENVER -- A group that claims to be planning the largest anti-war protest the week of the Democratic National Convention is upset by a parade route released by the city Thursday, saying the end point is vague and excludes them from the presence of delegates.

"We're hoping that what they sent out was a mistake," said Glenn Spagnuolo, head of Recreate 68.

The parade route was part of an agreement reached last month between the city and the Colorado chapter of the American Civil Liberties Union. The ACLU filed a a lawsuit in U.S. District Court on May 1 on behalf of 12 groups planning marches and demonstrations while Democrats meet Aug. 25-28 at the Pepsi Center to choose their presidential candidate.

The designated parade route city officials released will be accessible each day of the convention between 11 a.m. and 3 p.m. Mayor John Hickenlooper said the route is intended to allow access while minimizing disruption to traffic, downtown businesses, residents and visitors.

The parade route starts on the north side of Colfax Avenue in the westbound traffic lanes at Bannock Street, goes west toward Speer Boulevard, and north on the southbound lanes of Speer to Larimer Street. It doesn't specify how protesters will get from Larimer Street to the west side of the Pepsi Center where a protest area will be set up.

Critics worry that the city plans to keep protesters away from the delegates.

Mark Silverstein of the ACLU told 7NEWS that the city had promised to release all of the parade route details Thursday. He said his group could be headed back to court to force the city to provide more details.

Hickenlooper's spokeswoman, Sue Cobb, said that the final details are being figured out and will be released shortly. Cobb said the city is trying to balance the rights of the protesters and the need to keep the city accessible to those who live and work near the Pepsi Center.

City officials said they would announce on June 19 which groups would get parade permits. The agreement between the city and the ACLU also called for at least three time slots each day for marches along the parade route.

But Spagnuolo said the hours allotted for the parades guarantee delegates won't see or hear protesters.

Damon Jones, a convention spokesman, said delegates will be at the Pepsi Center daily beginning at 4 p.m.

Spagnuolo also said the city didn't include in the parade schedule the Sunday before the start of the convention. That's when Spagnuolo said his group plans to hold "the largest anti-war protest in the city's history."

Hickenlooper has promised that Denver will be more accessible to protesters than Boston was during the 2004 Democratic convention.