3,123 followers
RT @USGS_Pubs: New #USGS report on bedrock morphology and structure of Santa Cruz #groundwater basin, #Arizona https://t.co/mQoIESWXIX http…
RT @USGS_Pubs: New #USGS report on bedrock morphology and structure of Santa Cruz #groundwater basin, #Arizona https://t.co/mQoIESWXIX http…