Don't get dinged for car rental insurance you don't need or damage you didn't cause! Learn more.

Massacre Rocks State Park

3592 N. Park Ln.
American Falls, ID 83211

208548-2672

Register Rock, located two miles from the park, is home to a huge boulder that holds the signatures of Oregon Trail emigrants who stopped for an evening of rest before continuing on their journeys.

Images provided by AmericanTowns.com, Ticketmaster
Please use "Flag This Place" to alert us about content that is inappropriate or needs immediate attention. Nothing you submit will be shared with other site visitors.
AARP Member Card

Join or Renew Today

JOIN FOR JUST $16 A YEAR

  • Immediate access to your member benefits
  • Discounts on travel and everyday savings
  • Subscription to the award-winning AARP The Magazine
  • An ally on the issues that matter most to you in American Falls
  • Free membership for your spouse or partner
JOIN NOW