Thunder Mountain - loomis state forest

Located near the boundary of the Loomis State Forest, Thunder Mountain was listed as #417 in the book “Lookouts: Firewatchers of the Cascades and Olympics”. The book only gave the elevation and location, no description given of what could have been there. This site was not on the Kresik Lookout Inventory. There is an abandoned trail to the summit and past trip reports said nothing of anything laying around on the summit. If you know anything about this site, please email me.