page_title: Delta, Utah
section_title: Fossils and minerals
hierarchical_section_title: Delta, Utah / Science / Fossils and minerals
caption_attribution_description: English: Photo of the ground structure on Topaz Mountain, Utah. It is a rockhounding site for topaz and other minerals, located in Juab County, Utah.
context_page_description: Delta is the largest city in Millard County, Utah, United States. Delta is located at the north eastern end of Millard County along the Sevier River and is surrounded by farm land. The population was 3,436 at the 2010 census.
context_section_description: A great attraction of Millard County's economy is the digging of fossils.  Trilobite fossils are relatively common in the region west of Delta (part of the House Range's Wheeler Shale). A number of local companies maintain fossil dig areas where they allow visitors to dig their own fossils for a small fee.
  Near Delta is a mountain called Topaz Mountain which derives its name from the topaz that is abundant in the area.
  Other minerals and rocks that are prevalent near Delta include obsidian, opal, and geodes.
caption: Topaz Mountain
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