Several campgrounds in the Columbia River Gorge will begin to reopen this month, even as many popular day use sites and visitors’ centers remain closed.  Officials say Columbia Hills, Maryhill, and Brooks Memorial Campgrounds are expected to open Friday, and reservations can be made on the Washington State Parks website.  Memaloose Campground is scheduled to open Tuesday and Viento Campground on June 15, and reservations can be done through the Oregon State Parks website.  Wyeth Campground also has a planned opening of June 15, with reservations at Recreation.gov.  The U.S. Army Corps of Engineers expects delays in the opening of LePage and Plymouth Campgrounds due to recent storm damage.  Dispersed camping remains closed at all Corps parks.  Fewer trails, activities, and visitor services will be available this summer.  Information on the status of recreation sites is available at ReadySetGorge.com.  Visitors are asked to respect any posted closures and should never tamper with signs, flagging, or barriers on the assumption that they no longer apply.