Montgomery County officials say they are taking steps to cut the amount of stormwater that runs off county parks, carrying pollution into waterways and the Chesapeake Bay.
The Maryland Park Service says sections of some state parks in Central Maryland are closed until further notice.
The city of Frederick is considering banning smoking in city parks.
Officials say about 20 cats died excruciating deaths when they were poisoned recently at Constitution Park.
The National Park Service has named a 30-year veteran as the new superintendent of the National Mall in Washington.
A study of Maryland state parks found they contribute more than $650 million a year to the state’s economy.