Chuck County has grown tremendously since the 70's/80's. None of the Westlake part of St. Charles even existed until the late 80's. The mall wasn't there, the shopping center on the other side of Smallwood Drive wasn't there. It was all wooded.
Where the Festival is now, used to be a Sears Surplus Store, there was a Burger Chef, the drive in theater and I think Denny's was there. Where Best Buy and Market Place is was all woods.
Waldorf Shoppers World had a Rustler's Steakhouse where Red Hot & Blue is. Peebles was where Sports Authority is. Dart Drug was where Borders is. Mammoth Mart was where Burlington Coat Factory is. Szechuan Gardens and the movie there were there. Roy Rogers was where Einsteins' is. Teens used to cruise that parking lot every weekend.
La Plata was "rural". There was a People's Drug (where Outback is now); Safeway was in that shopping center, as well as a jewelry store, a bakery, a liquor store. There was no KFC - just the gas station. Howard Johnson's was on the other side of the street in front of the church. There was a Chevy Dealership where the Exxon station is and a Hardee's. A & P/Superfresh was where True Value is. None of that stuff behind there (Facchina, etc) was there. You had the IGA store across from the old Firehouse, Ben Franklin and PS Bowling's was in the building next to Casey Jones. I remember La Plata High School used to have their Homecoming Parade which started where the Governmental Center is now (used to be Milton Somers Middle School), go down Charles Street to 488 then onto LPHS. After the parade we had the homecoming game - on a Saturday afternoon.
I remember all high school football games for all 4 high schools (LPHS, Lackey, Stone and McDonough) being played at White Plains Regional Park.
Where the Walmart is in La Plata - that was all wooded. There was a little motel there. Where Walgreen's is there was a Roy Rogers.