GSA Joint Section Meeting

Rocky Mountain (70th Annual Meeting)
Cordilleran (114th Annual Meeting)

15–17 May | Flagstaff, Arizona
Double Tree by Hilton Hotel and Conference Center


Flagstaff lies at 7,000 feet (~2100 m) elevation on the southern edge of the geologically world-class Colorado Plateau, near the southern margin of the young and active San Francisco volcanic field. The city is located just north of the Transition Zone and Basin and Range provinces, including the tourist destination of Sedona one hour away. The Grand Canyon is a 1.5-hour drive north of Flagstaff, and numerous geologically significant national parks and monuments are scattered across the region. We devised a diverse technical program and field trips that explore the geology of the Southwest and span from modern to ancient processes, and from environmental problems to tectonics, geophysics, paleontology, climate, education, and more. We include sessions on planetary geology and Southwest rivers that build on the strong legacy and current expertise of the local U.S. Geological Survey. Flagstaff is home to Northern Arizona University (NAU) and its School of Earth Sciences and Environmental Sustainability. We are holding the meeting in mid-May immediately after the NAU school year, while the weather is good on the Plateau and in the Transition Zone. Weather in May in Flagstaff includes highs in the 60s and 70s (15–25° C) and cool nights; rain is unusual but can occur.

DoubleTree by Hilton Lobby
DoubleTree by Hilton
1175 West Route 66
Flagstaff, Arizona 86001, USA


Housing Deadline: 26 April

A block of rooms has been reserved at the DoubleTree by Hilton, the meeting venue. The meeting rate is US$159 per night plus tax for single and double occupancy, US$143 for government rate. Reservations should be made by calling the DoubleTree directly at +1-928-773-8888 (local). Attendees should reference the group code “Geological Society of America.” Book Now! Rooms are going fast!


The meeting is providing free bus service from the DoubleTree Hotel to the Hampton Inn and Hilton Garden hotels near south Milton Street, at the hotels along central Milton Street, and to the downtown area during the Monday opening reception, from 7:30 a.m. to early evening on Tuesday, Wednesday, and Thursday. Maps and GSA meeting bus schedules will be at the registration desk at the DoubleTree Hotel and posted here.

NAU Bus Routes NAU Bus Schedule


We thank our sponsors below for their generous support. 
School of Earth and Space Exploration - Arizona State University
College of Engineering, Forestry, and Natural Sciences
University of Arizona Geosciences (Arizona LaserChron Laboratory - ALC, Arizona Radiogenic Helium Dating Lab - ARHDL)
School of Earth Sciences & Environmental Sustainability - Northern Arizona University
Arizona Geological Survey - sponsorship of the banquet
Prof. Stephen J Reynolds, author of Exploring Geology, Exploring Earth Science, and Exploring Physical Geography - sponsorship of the banquet

RISE logo


20 February
Abstracts Submission

9 April
Early Registration

26 April


Meeting General Chair:
Paul Umhoefer, Northern Arizona Univ.

Rocky Mountain Co-Chair:
Dennis Newell, Utah State Univ.

Exhibits, Sponsorships:
Steve Reynolds, Arizona State Univ.

Technical Program Co-chairs:
Nancy Riggs, Northern Arizona Univ.

Ryan Crow, U.S. Geological Survey

Dave Elliott, Northern Arizona Univ.

Short Courses:
Lisa Skinner, Northern Arizona Univ.

Field Trip Chairs:
Mike Smith, Northern Arizona Univ.

Steve Semken, Arizona State Univ.

Student Volunteers:
Lisa Skinner, Northern Arizona Univ.