We now know that the state of Washington does have mountains and even some sunshine now and then. The sun did peek thru the clouds today. And yes, Washington is very green!
Cape Disappointment is the western most trek for Lewis & Clark. The mouth of the Columbia River is one of the most difficult river entrances from the Pacific with frequently changing sand bars and frequent storms.
For Lewis & Clark it was a rough and treacherous trip from St Louis, MO to the Pacific. They wintered at Fort Clapsop, OR. In that time, they had 12 none raining days and only 6 days of sun. A rough winter resupplying for their trek east.