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Aug. 2-4, Creede, CO Rock & Mineral Show, at the Creede Underground Mining Museum and Community Center. See .


Aug. 8-11, Contin-Tail rock & mineral show, Buena Vista Rodeo Grounds, Buena Vista, CO; see


Aug. 15-18, Woodland Park Rock, Gem, & Jewelry Show, Woodland Park, CO; see


Aug. 16-18, Lake George Gem & Mineral Show, sponsored by the Lake George Gem and Mineral Club, Lake George, CO.  See


Sep. 6-15, Colorado Mineral and Fossil Fall Show, Crowne Plaza Hotel - Airport, 15500 E. 40th Ave. Denver, CO.


Sep. 7-8, 1st Annual Denver “Just Minerals Event”, Embassy Suites Hotel, 4444 N. Havana St., Denver; wholesale and retail mineral dealers.


Sep. 8-16, Denver Coliseum Mineral, Fossil, and Gem Show, Denver Coliseum; see


Sep. 11-14, Denver Fine Mineral Show, Denver Marriott West, 1717 Denver West Blvd.; see


Sep. 13-15,  52nd annual Denver Gem and Mineral Show, Denver Mart, 451 E 58th Ave., Denver, CO.  Minerals of Canada is the 2019 show theme. See

Leonardo da Vinci at the Colorado School of Mines, Arthur Lakes Library: In addition to the Leonardo da Vinci: 500 Years of Genius exhibit now in progress at the Denver Museum of Nature and Science (see ), there is another excellent  exhibit about his work, currently on display at the Lakes Library on the CSM campus. The Machines of Change: The Da Vinci Machines exhibit includes “over 60 authentic reproductions of machines and devices designed by Leonardo DaVinci were created using similar materials, building techniques and tools that Leonardo would have had access to in his time”, plus full-size reproductions of Leonardo’s most famous paintings.  The exhibit, free to all visitors, is spaced around the corridors and reading rooms of the main floor of the library. Library hours are 8 a.m. to 8 p.m. most days, 12 to 6 weekends. They say that the exhibit at CSM will be open until mid-July.

For more lecture series during the year see:


Colorado Beer Talks (2nd Tuesday, 6-8 p.m.), Windy Saddle Café, 1110 Washington Avenue, Golden, “Golden’s grassroots version of TED talks, Expand your mind with a beer in your hand”,

Colorado Café Scientifique in Denver, monthly lectures on science topics held either at Blake Street Station or Brooklyn’s, Denver; open to the public, no charge other than refreshments you may choose to purchase; see .

Colorado Scientific Society (3rd Thursday, 7 p.m.), see . Meets at Shepherd of the Hills Church, 11500 W. 20th Ave., Lakewood CO, except when noted.

CU Geological Science Colloquium (Wednesdays, 4 p.m.) see

CSU Dept. of Geoscience Seminars (Fridays, 4 p.m.), see

Van Tuyl Lecture Series, Colorado School of Mines, (Thursdays, 4 p.m.):

Denver Mining Club (Mondays, 11:30), see .

Denver Museum of Nature and Science, Earth Science Colloquium series, 3:00-4:00 p.m., VIP Room unless noted, day of the week varies. Museum admission is not required; see

Denver Region Exploration Geologists Society (DREGS; 1st Monday, 7 p.m.),

Florissant Scientific Society (FSS); meets monthly in various Front Range locations for a lecture or field trip; meeting locations vary, normally on Sundays at noon; all interested persons are welcome to attend the meetings and trips; see for details and schedules.

Nerd Night Denver is a theater-style evening featuring usually 3 short (20-minute) TED-style talks on science or related topics; held more-or-less monthly at the Oriental Theater, 4335 W. 44th Ave., Denver; drinks are available; for ages 18+.  Admission is $6 online in advance, $10 at the door. See .

Rocky Mountain Map Society (RMMS; Denver Public Library, Gates Room, 3rd Tuesday, 5:30 p.m.),

Western Interior Paleontological Society (WIPS); beginning January 2019, WIPS will meet on the 1st Monday of the month, 7 p.m., at Lowry Conference Center, 1061 Akron Way, Denver. See .

Thanks to Peter J. Modreski for keeping us up to date!
To be added to his email list for upcoming events, send request to
pmodreski @