Marietta Sand Prairie State Preserve

Knapp Ave
Marshalltown, IA 50158

641-752-5490

Marietta Sand Prairie is a 17-acre preserve featuring aeolian (windblown) sand deposits and a sand prairie. It is located seven miles northwest of Marshalltown in Marshall County. The area was purchased in 1983 from the Conrad family by a lifelong Marshall County resident who wanted to give a lasting gift to the county. The prairie, initially named “Conrad Sand Prairie,” was renamed “Marietta Sand Prairie” after the township in which it is located. The area was dedicated as a biological and geological state preserve in 1984.

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.
Explore the free AARP HomeFit Guide

Upcoming AARP Events

View All AARP Events

image of two AARP membership cards
Only $12 your first year with Automatic Renewal
  • Immediate access to your member benefits
  • Discounts on travel and everyday savings
  • Subscription to AARP The Magazine
  • FREE second membership
Join AARP
Already a member? Renew or Print Card