YOSEMITE NATIONAL PARK, Calif. (AP) — On busy days, more than 8,000 cars pass through Yosemite Valley. The problem is there are only 1,100 parking spaces in the national park's tourist mecca.Park officials are asking for the public's input on this and other access issues as they begin their third attempt at drafting a plan to protect the Merced River.The environmental assessment is 11 years overdue. Other versions have been thrown out by the courts because not enough protections were given to the river, which Congress designated as "Wild and Scenic" in 1987.The park lost hundreds of camp sites and lodging rooms in the 1997 floods. Many were in what is now the protected river corridor and cannot be replaced.Officials warn the final plan could limit the number of daily visitors.