The National Park Service has launched a Web site for visitors with disabilities and other special needs to help them find accessible trails, programs and activities at national parks.

The Web site -- www.nps.gov/pub_aff/access/index.htm -- lists places where signed interpreters can be arranged for the hearing-impaired and which visitors centers have captioned movies or services for visually impaired park-goers. There are also detailed descriptions of trails, including the type of surface, for visitors who have mobility handicaps or use wheelchairs.