CHEYENNE, Wyo. (AP) - National parks in the U.S. will sharply drop the number of days they allow visitors to get in for free.

After waiving entrance fees for 16 days in 2016 and 10 days in 2017, the National Park Service announced Tuesday that it will have four no-cost days next year.

They will be Martin Luther King Jr. Day (Jan. 15), the first day of National Park Week (April 21), National Public Lands Day (Sept. 22) and Veterans Day (Nov. 11).

It comes after the Park Service said it was considering raising vehicle entry fees at 17 busy parks mainly in the West, including Denali, Yellowstone, Grand Canyon, Yosemite and Zion.

The proposal would raise the cost from $25 or $30 per week to $70.

The agency estimates the increase would generate an additional $70 million to help address backlogged maintenance and infrastructure projects.

(Copyright 2017 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)


NPS extends comment period for proposed fee hike 

Denali National Park entry fees would rise under proposal 

95% of Alaska's glaciers affected by climate change: NPS