top of page


GIS Services, Geospatial Data Analysis, Cartographic Design

ElephantFish was born in a ponderosa pine forest of Pine, Colorado to provide GIS services to environmental, water resources, and geologic businesses as well as nonprofit organizations that have no full-time GIS staff or businesses with GIS needs that may exceed the size of their GIS staff.

ElephantFish focuses on communication with clients to ensure the delivery of high-quality products including 3D geologic models, location maps and everything in between.

The software ElephantFish uses is ESRI's ArcGIS Pro, with the Spatial and 3D Analyst extensions as well as ArcGIS Online, and Aquaveo's ArcHydro Subsurface Analyst. The Adobe Suite is used to add those final touches to cartographic mapping projects.

Tammi Renninger, GISP, PG

Owner - GIS Professional

Tammi is a GIS Professional with an emphasis in geology, hydrogeology, hydrology, and environmental sciences.

After first being introduced to GIS in 1998, Tammi jumped back into the world of GIS in 2010 to earn her Master's degree from the University of Denver. GIS marries two of her loves: analyzing data and creative data display for decision making and educational purposes. She has been working in the environmental and/or water resources industries since graduating with a Geology degree in 1999.

She loves mountains, rocks, plants, and, of course, GIS!


GIS Colorado (GISCO)

North American Cartographic Information Society (NACIS)

National Ground Water Association

Colorado Ground Water Association

bottom of page