Soil and plant tissue archive

Cedar Creek maintains a collection of soil and plant tissue samples collected across the site from 1982 through the present. Samples are stored in vials in an onsite dedicated facility.  This collection currently has over 110,000 samples. A complete list is available in a ZIP file here.

Researchers are encouraged to archive extra material from samples being processed for chemical analysis.  If possible, one full scintillation vial of material is ideal. Archive ID numbers may be requested from the CDR information manager by providing a complete list of samples, description of contents, where each was collected, and the date and purpose of collection. Labels with Archive IDs and sample metadata are provided. Processed samples in labeled vials are given to CDR research managers, who add them to the archives.

Requests for access to samples should be sent to

Insect Archive

Cedar Creek manages an extensive on-site collection of insects. This contains nearly 4000 taxa collected from Cedar Creek, including:

900 COLEOPTERA (includes 120 Carabidae, 120+ Chrysomelidae, 50 Scarabaeidae, 50+ Cerambycidae, 90+ Curculionidae).
1000 HYMENOPTERA (includes 400 Ichneumonidae+Braconidae, ca 100 CHALCIDOIDEA, 85 Sphecidae, 140 APOIDEA).
700 DIPTERA (includes 150 BRACHYCERA, 80 Syrphidae, 180+ ACALYPTERATA incl.30+ Chloropidae).
400 LEPIDOPTERA (60 PAPILIONOIDEA, 25 Hesperiidae). 300 HEMIPTERA (includes 100 Miridae, 40 Lygaeidae, 40 Pentatomidae)
300 HOMOPTERA (includes 130 Cicadellidae, 45 Membracidae, ca 40 Fulgoroidea).
80+ ORTHOPTERA (includes 40 Acrididae)
60+ ODONATA (includes 27 Libellulidae)
30 NEUROPTERA (includes 3+ Myrmeleontidae, 8 Hemerobiidae)

These samples are used for education and reference, and are not available for external or destructive use.


Cedar Creek also maintains GIS data for experiment locations and topography. Requests for CDR GIS data or maps can be addressed to

External Archives

The Bell Museum in the College of Food, Agricultural and Natural Resource Sciences at the University of MN maintains an archive of plant and animal specimens from around the state, including many from Cedar Creek. The location identifier for these samples varies based on the name of Cedar Creek when the samples were collected (e.g. Cedar Creek Forest).

The Department of Entomology at the University of MN maintains an extensive insect collection, which includes more than 500,000 individual insects from more than 2,200 species, collected by Dr. John Haarstad at Cedar Creek.