The level of Lake Sakakawea has risen slightly in the past few days - as heavy rains run off into the lake.
But the big lake is still about eight feet lower than it was one year ago.
And that has left places like Lewis & Clark State Park with a dry marina.
Here's how it looked late last month at the park - with boat docks nearly out of the water.
Manager Greg Corcoran says the marina's slips will be unusable this summer, unless the recent rise continues and quickens.
He says it's a big change over what's been happening in recent years.
(Greg Corcoran, Lewis & Clark State Park Manager) "We've had great access - the last four years have just been phenomenal. People had bought boats and want to come out and recreate and we finally had the water and now this year we don't have it again so we're back to that cycle where people are going to have to let their boats sit in the garage again so it's not that good this year."
Corcoran says Williston-area boaters who want to get on Lake Sakakawea will now have to travel to White Earth - another 20 miles to the east.
On the bright side, he expects camping at Lewis & Clark State Park to be very popular again this summer.