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Sat. & Sun., Apr. 28-29, Colorado School of Mines Geology Museum Public Sale of minerals, rocks, books, maps, journals, fossils, etc.  Noon to 4 p.m. Saturday, April 28, and 9 a.m. to 4 p.m. Sunday, April 29. An advance preview sale (before 12 noon on Saturday) is for Friends of the CSM Museum only. “Most prices will drop throughout the event”. For information call 303-273-3815.


Tues., May 1, 10:30 a.m., USGS Rocky Mountain Science Seminar, Building 25 Lecture Hall, Denver Federal Center, “Exploring sedimentary environments in Gale Crater with the Mars Science Laboratory Rover”, by Lauren Edgar, USGS – Flagstaff.


Thurs., May 3, 7:00 p.m., First Thursday lecture series of the Friends of the Colorado School of Mines Geology Museum, The Colorado-Wyoming State Line Kimberlite District, by Philip Persson. All are welcome. Expected location: Ben H. Parker Student Center, Ballroom "E", Maple Street, Golden.


Sat., May 5, 11 a.m. – 2:45 p.m., Colorado Mineral Society Silent Auction, Holy Shepherd Lutheran Church, 920 Kipling St. (3 blocks north of West 6th Ave.) Lakewood. All welcome.


Tues., May 8, 6:00-8:00 p.m., “Golden Beer Talks”: Johanna Kovarik, U.S.Forest Service, National Cave and Karst Program Coordinator, “A Life Underground: Studying and Stewarding the Magical Subterranean World of Caves”. Windy Saddle Café, 1110 Washington Avenue, Golden.“Golden’s grassroots version of TED talks, Expand your mind with a beer in your hand”, see .  (Talk begins at about 6:35.)


Tues., May 8, 7:00 p.m., annual Emmons Lecture sponsored by the Colorado Scientific Society,  High drama at the Paleocene/Eocene boundary  in the Bighorn Basin; implications for today, by Will Clyde, University of New Hampshire.  On the CSM campus, exact location TBA (I believe it will be in the Ben H. Parker Student Center Grand Ballroom).


Thurs., May 10,  7:30 p.m., Friends of Mineralogy, Colorado Chapter, bimonthly meeting, at  Lakeview Event Center,7864 W. Jewell Ave.: “The W-Sn-Be deposit of Xuebaoding, Sichuan Province, China: current research, past, and future of a world class mineral locality”, by Markus Raschke, CU.


Sat., May 12, Dinosaur Discovery Day, featuring Boy Scout Day at Dinosaur Ridge, Morrison, CO.  See for full information.


Mon., May 14, 7:00 p.m., DREGS (Denver Region Exploration Geologists’ Society) annual Distinguished Lecturer, Dr. William A. (Bill) Rehrig, “New Discoveries, New Questions – 60 Years in Exploration Geology”. Berthoud Hall Room 241 at Colorado School of Mines; social hour with refreshments beginning at 6:00 p.m.


Sun., May 20, 12 noon to 4 p.m., Friends of Mineralogy, Colorado Chapter, Silent Auction, at Clements Community Center, 1580 Yarrow St., Lakewood.  All are welcome.


Fri.-Sat.-Sun., June 1-3, Pikes Peak Gem & Mineral Show, sponsored by the Colorado Springs Mineralogical Society;  at the Norris-Penrose Event Center [new location], 1045 Lower Gold Camp Road #3, Colorado Springs.


Sun., June 17, I was going to publicize the date of the once-yearly Geology Train on the Cumbres & Toltec Scenic Railroad, Antonito, CO, but I’ve learned that this train trip is booked full up.  Make reservations early next year! See their website, .



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 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 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 Paleontology Society (WIPS; Denver Museum of Nature & Science, 2nd Monday, 7 p.m.), . Meetings are held either in the Ricketson Auditorium or the Planetarium at the Denver Museum of Nature & Science, unless otherwise noted




Colorado School of Mines Geology Museum The museum is at 1310 Maple St. (corner of 13th and Maple Streets) on the CSM campus, Golden, and is well worth a visit at any time; daily hours are 9-4 Mon. through Sat., 1-4 Sundays. The beautiful new museum at the Colorado School of Mines is one of the treasures of our state’s legacy. Filled with fabulous mineral, ore, and fossil specimens, the collection has been amassed since the earliest days of the Territorial School of Mines in the 1870s. "Did you know?", "Evaluation of specimens is performed between 10 a.m. and noon, Tuesdays through Thursdays." If you have a mystery rock/mineral specimen that has always puzzled you, considering bringing it to show them at these times.

Thanks to Peter J. Modreski for keeping us up to date!

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