Here's what I know of the Ariel Store and DB Cooper days.
I kind of heard that the "store" was built in the 1920s and was a general store for the area as it was being logged. Ariel proper must have been downhill a bit by the Lewis River, towards the land that got swallowed up when the Merwin Dam was put in during the 1940s, I think.
When the soldiers came into the area in March 1972 to look for DBC, they camped out in the flat lands on the north side of the dam, a rather bucolic setting that is now a spacious park, replete with fire pits, picnic tables and the like.
The soldiers used the store as a watering hole during the 18 days they searched in March, and then again in April 1972. Feds were mixed in with them. The owner of the store/tavern was Jermaine Tricolor, and he started the shin-dig in 1974, I believe. Dona bought the store from Tricolor in 1980-something, and had been living there since that time, I believe.
The DB Cooper connection is real, and has been a strong force in and around the Ariel Store since the skyjacking. At present, there are no other stores any where near the Ariel Store, and it is on a road that is only a spur to the dam that runs from the main highway road. About a dozen homes are located on the road, all situated between the store and the highway, which is a two-lane black-top affair.
West of the Ariel Store are rolling farmlands, stretching to Woodland, WA, about ten miles away. East of the store, the land changes abruptly and is quite rugged and wooded. To get to Amboy from Ariel, even though they are only a stone's throw apart from each other, technically, across the Lewis River, it actually takes about 40 minutes of driving eastwards, and then circling south and southwest to Amboy, or heading back towards Woodland for about seven miles, crossing the Lewis River, and then driving into the Amboy area, which is quite beautiful.
Meyer and I had a delightful tour of the Amboy scenery since we were directed to four different homesites by folks claiming they knew exactly where the Amboy chute was found. None of those spots was close to any of the others. But now I know where Green Mountain, Buncombe Hollow Rd and Cedar Creek Rd are, with the latter two roadways featured by Tom MacDougall and Jake in their accounts of the ground search and transporter episodes.
One aspect of Ariel that is not mentioned much is the figure of Dona. She was clearly a central person to the DB Cooper story, but I found her accounts of the skyjacking and the unfolding of events in the investigation that followed to be surprisingly unreliable. I was disappointed to realize that she was unable to be a substantive witness to the DB Cooper saga, other than contributing her own colorful personality. Regardless, she hosted the best party I have attended in years. I loved hanging out in Ariel for Cooper Days. But Dona's directions to the Amboy chute proved to be utterly fruitless.