18 Anonymous In: Question-Answer What discovery led to an increase in Oregon Trail travel to California? 18 What discovery led to an increase in Oregon Trail travel to California? Gold Rubber Tin Silver 1 Answer Voted Oldest Recent Random Best Answer Goto 2021-10-22T18:57:10+00:00Added an answer on October 22, 2021 at 6:57 pm The correct answer is Gold. 12 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.