Cedar Valley Rocks and Minerals Society was organized for the purpose of studying the sciences of mineralogy, geology, and paleontology and the arts of lapidary and gemology.

Regular Meetings: 3rd Tuesday, 7:15, Sept. through May
Venue Hiawatha Community Center

See Monthly Newsletters for Meeting Details.
  • September 20, 2017 - Program by Brent Studer
  • October 10, 2017 - NOTE: 2nd Tues.
  • November 20, 2017 - Annual Meeting - NOTE: 3rd Mon.
  • December 12, 2017 - Holiday Party - NOTE: 2nd Tues.
  • January 16, 2018
  • February 20, 2018 - Program by Tiffany Adrain, UI Paleo Repository
  • March 20, 2018
  • April 17, 2018
  • May 15, 2018

Annual 2-Day Auction September 15-16, 2018

Check the Auction tab in the menu for more details. The pictures and items on the flyer represent only a few of the approximately 1,150 items that will be auctioned.
  • Amana RV Park, 39 38th Ave., Amana, IA
  • Sat. from 9 a.m. to about 8 p.m. Dinner available about 5:30.
  • Sun. from 9 a.m. to about 3:00 p.m.
  • Viewing Fri. from 5:00-7:30 p.m.; Sat. starting at 7:30 a.m.; Sun. starting at 8:00 a.m.

Waterloo Gem, Mineral & Fossil Show
"Iowa Rockhounds"

Black Hawk Gem & Mineral Society
April 15, 2018, noon - 5:00
Waterloo Center for the Arts
225 Commercial St., Waterloo, IA 50701

Largest Fossil-Only Show in the World
Mid America Paleontolgy Society (MAPS)
Expo XL

April 6-8, 2018
Sharpless Auctions Facility, I-80 Exit 249, Iowa City, IA

  • Fri. & Sat 8-5
  • Sun 8-3 (limited dealers on Sun.)
  • Live Auction Sat at 5:15
  • Keynote Speaker: Margaret Frasier of the University of Wisconsin-Milwaukee, who will present "Earth's Largest Extinction and Life's Recovery" at 6:00 Friday
  • Check the MAPS website for further information


to see events scheduled by clubs in the Midwest area.

Help Make Crinoids Iowa's State Fossil

support Senate Joint Resolution 2001
"recognizing the fossil crinoid as the State Fossil"

Floyd the 'Noid
Where Did
Floyd the 'Noid
Come From?

Play Video
to Find Out

Club Bus Trip Videos

View Slide Shows of Club Trips
Field Museum
Fryxell & Lizzadro Museums


Marvin Houg
1820 30th Street Dr SE
Cedar Rapids, IA 52403-1580
Marv Houg

Dale Stout
2237 Meadowbrook Drive S.E.
Cedar Rapids, Iowa 52403
Dale Stout

Meeting Place
Hiawatha Community Center
101 Emmons St, Hiawatha, IA