Kate Clover led driving/walking GSM field trips to explore Platteville Limestone in the Twin Cities on Saturday, September 26 and Saturday, October 3, both at 1 PM. See Kate’s article in the August 2020 GSM Newsletter and the field guide sent to participants for background information. The stops in the captions refer to Kate's field guide, and text for many of these captions was lifted from the field guide and from the other websites listed below. Websites: St. Peter's Church: https://stpetersmendota.org/ Sibley House: https://www.dakotahistory.org/sibley-historic-site https://en.wikipedia.org/wiki/Sibley_Historic_Site Assumption Church: https://www.assumptionsp.org/ https://en.wikipedia.org/wiki/Church_of_the_Assumption_(Saint_Paul,_Minnesota) Alexander Ramsey House: https://www.mnhs.org/ramseyhouse https://www.mnhs.org/ramseyhouse/learn/house https://en.wikipedia.org/wiki/Alexander_Ramsey_House Capital Masonry Restoration: https://www.capmasonry.com/ Waldmann Brewery: http://waldmannbrewery.com/ Aerial views: St. Peter's Church: https://www.google.com/maps/@44.8866843,-93.1679654,60a,35y,180h,39.41t/data=!3m1!1e3?hl=en Sibley Historic Site: https://www.google.com/maps/@44.8891641,-93.1658114,154a,35y,180h,39.38t/data=!3m1!1e3?hl=en Former Beilenberg Quarry: https://www.google.com/maps/@44.9309193,-93.084549,64a,35y,180h,39.45t/data=!3m1!1e3?hl=en Assumption Catholic Church: https://www.google.com/maps/@44.9465467,-93.0994538,130a,35y,39.41t/data=!3m1!1e3?hl=en Alexander Ramsey House: https://www.google.com/maps/@44.9414549,-93.1034648,67a,35y,270h,39.45t/data=!3m1!1e3?hl=en 178 Goodrich Ave, St Paul: https://www.google.com/maps/@44.9377568,-93.1081409,45a,35y,90h,42.35t/data=!3m1!1e3?hl=en 202 McBoal St., St. Paul: https://www.google.com/maps/@44.9392065,-93.1084849,63a,35y,180h,39.46t/data=!3m1!1e3?hl=en Waldmann Brewery: https://www.google.com/maps/@44.9382019,-93.1089927,54a,35y,270h,39.45t/data=!3m1!1e3?hl=en