22 Anonymous In: Question-Answer What technological development made the Oregon Trail obsolete? 22 What technological development made the Oregon Trail obsolete? Automobiles Railroads Canoes Airplanes 1 Answer Voted Oldest Recent Random Best Answer Goto 2021-03-07T12:42:41+00:00Added an answer on March 7, 2021 at 12:42 pm The correct answer is Railroads. 14 Reply Share Share Share on Facebook Share on Twitter Share on WhatsApp Leave an answerLeave an answerCancel reply Featured image Select file Browse Click on image to update the captcha. Save my name, email, and website in this browser for the next time I comment.