Road trip Portland, OR to metro Detroit area Mi

Star2236 thought this was worth mentioning said

I’m flying out to Portland November 15th and driving back with my brother who’s moving back to Michigan. We’re leaving the 18th and want to be home on the 24th. I know we’re taking a more southern route bc of weather but I’m looking for any cool things to stop and see along the way. I would like to do a hot springs and if any gem mining/gold digging or underground cave/waterfall tours, something like ruby falls would be really cool. I missed that when I drove home from Florida and have always regretted it. Any and all suggestion of cool things to see would be appreciated, I’ve never gone any farther than Chicago. I know we’re looking to get out of Oregon really fast bc he’s lived there for over 10 years. Thanks.