It's time to exercise your national park brain muscles again, with this Quiz and Trivia #9. See just how much you know and learn a little something at the same time.

Weather is warming across the country, and desires to get outside and into the National Park System are growing, but exactly how parks will go about reopening continues to be a work in progress not entirely ready for public disclosure. At least one major park concessionaire, unable to safely house workers, announced Tuesday that two of its lodges in Grand Teton National Park are not expected to open this year.

Wyoming officials by month's end plan to ease off on restrictions put in place to slow the spread of coronavirus, but that doesn't mean access to Grand Teton and Yellowstone national parks or other park system units in the state will quickly return.