• Roaring Fork at Stillwater ran at 16.5 cfs on Nov. 14, a 20% drop from last week but only down 3.5% from last year.
• Lake Powell has lost 46.5 vertical feet in surface elevation in the last year.

Author Archives: Laurine Lassalle
Laurine Lassalle is Aspen Journalism’s data desk editor, where she works to catalogue and analyze local public data. She also heads our our “Tracking the Curve” project, documenting COVID-19 in Pitkin, Eagle and Garfield counties. She has a master’s degree in data and investigative journalism from UC Berkeley with an emphasis on environmental reporting.
Data dashboard: October wastewater flow rates close to pre-pandemic seasons
• Wastewater flow rates in October 2021 was 0.4% higher than in October 2019.
• Roaring Fork River in Aspen running at 23.26 cfs on Nov. 7, up from 21.49 cfs last week.
Data dashboard: Lake Powell could reach critical water level next July
• Lake Powell’s elevation dropped to 3,544.3 feet, or 155.8 feet from full pool on Oct. 31.
• Roaring Fork River running at 21.49 cfs on Oct. 31 across town, up from 20.98 cfs last week.
CPW plan could mean more bear hunting and better trash management
Colorado Parks and Wildlife released its black bear management draft plan earlier this month, amid long-term growth in the number of conflicts between bears and humans. The plan proposes two options: maintaining the bear population’s status quo or actively decreasing the bear population.
Data dashboard: Traffic growth in Aspen in September, while August was below average
• Aspen’s average daily car count reached 22,852 in September, up 3% from September 2019.
• Roaring Fork River running at 18.4 cfs on Oct. 24 at Stillwater, down from 37.4 cfs last week.
Data dashboard: September’s occupancy rates hit new record high
• Aspen’s paid occupancy rate reached 69.3% in September, surpassing the former record of 65.3% in September 2017.
• The Roaring Fork River ran at 37.4 cfs on Oct. 17 at Stillwater, up from 32.6 cfs last year.
Data dashboard: Local streamflow increasing after recent rains
• Roaring Fork River running at 39.18 cfs on Oct. 10 across town, up from 22.7 cfs on Oct. 3.
• Lake Powell’s elevation lost two inches between Oct. 3 and Oct. 10.
Data dashboard: Wastewater in August and September catches up with past trends
• Aspen wastewater in August mirrored 2020, down 6% from 2019, while September was down 2% from 2020, on par with 2019.
• Roaring Fork River running at 22.7 cfs on Oct. 3 across town, up from 11.31 cfs on Sept. 26.
Data dashboard: Roaring Fork, Crystal rivers keep running below minimum instream flow
• Crystal River at the Dow Fish Hatchery bridge running at 5.8 cfs.
• 2021 began the year with dry soils, which led to decreased runoff and streamflow in the spring.
• Lake Powell surface level drops another foot to 3,546.
Data dashboard: Soil moisture catching up after starting out drier than usual
• Upper Roaring Fork streamflow at 55% of average, but dropped even lower on Sept. 16.
• 2021 began the year with dry soils, which led to decreased runoff and streamflow in the spring.
• Lake Powell surface level drops another foot to 3,547.1.