GCMRC, Cooperator, and Tribal River Trips and Field Activities 

Occurred or Planned For Calendar Year 2021 

Launch Take 

out Project Number, Agency, and Project Description Location

6-Jan 8-Jan Project H, GCMRC, Lees Ferry Brown Trout Early Life Stage 

Monitoring Glen Canyon

25-Jan 27-Jan Project H, GCMRC, Lees Ferry Brown Trout Early Life Stage 

Monitoring Glen Canyon

27-Jan 1-Feb Project H, GCMRC, Lees Ferry Trout Population Monitoring Glen Canyon

16-Feb 18-Feb Project H, GCMRC, Lees Ferry Brown Trout Early Life Stage 

Monitoring Glen Canyon

18-Feb 5-Mar Project A, GCMRC, Water Quality and Sediment Monitoring Grand Canyon

8-Mar 11-Mar Project H, AGFD, Lees Ferry Fish Population Monitoring Glen Canyon

9-Mar 11-Mar Project O, GCMRC, Spring Disturbance Flow Aquatic 

Vegetation Monitoring Glen Canyon

9-Mar 11-Mar Project O, GCMRC, Spring Disturbance Flow Sandbar 

Monitoring Pearce Ferry

10-Mar 21-Mar Project O, GCMRC, Spring Disturbance Flow Aquatic Food Base 

Monitoring Grand Canyon

11-Mar 13-Mar Project H, GCMRC, Lees Ferry Brown Trout Early Life Stage 

Monitoring Glen Canyon

24-Mar 28-Mar Project O, GCMRC, Spring Disturbance Flow Sandbar 

Monitoring Pearce Ferry

29-Mar 31-Mar Project O, GCMRC, Spring Disturbance Flow Aquatic 

Vegetation Monitoring Glen Canyon

29-Mar 31-Mar Project H, GCMRC, Lees Ferry Brown Trout Early Life Stage 

Monitoring Glen Canyon

3-Apr 16-Apr Project I, AGFD, Mainstem Nonnative Fish Monitoring Grand Canyon

10-Apr 21-Apr Project F, GCMRC, Aquatic Food Base Monitoring Grand Canyon

18-Apr 20-Apr Project H, GCMRC, Lees Ferry Brown Trout Early Life Stage 

Monitoring Glen Canyon

20-Apr 30-Apr Project G, USFWS, LCR Humpback Chub Monitoring Little Colorado 

River

21-Apr 23-Apr Project O, GCMRC, Spring Disturbance Flow Sandbar 

Monitoring Pearce Ferry

23-Apr 17-May Project H, GCMRC, Juvenile Humpback Chub Monitoring Grand Canyon

26-Apr 30-Apr Project I, GCMRC, LCR Channel Catfish Monitoring Little Colorado 

River

28-Apr 12-May Project B, GCMRC, Survey Control Network Grand Canyon
3-May 7-May Project I, GCMRC, LCR Channel Catfish Monitoring Little Colorado 

River

5-May 24-May Project D, GCMRC Cultural Resources Monitoring Grand Canyon

12-May 16-May Project I, GCMRC, LCR Channel Catfish Monitoring Little Colorado 

River

13-May 15-May Project H, GCMRC, Lees Ferry Brown Trout Early Life Stage 

Monitoring Glen Canyon

18-May 28-May Project G, USFWS, LCR Humpback Chub Monitoring Little Colorado 

River

29-May 6-Jun Project B, GCMRC, Channel and Sandbar Mapping – Water 

Surface Elevation Grand Canyon

3-Jun 19-Jun Project I, GCMRC, E-DNA Sampling Grand Canyon

3-Jun 6-Jun Project I, GCMRC, LCR Channel Catfish Monitoring Little Colorado 

River

9-Jun 13-Jun Project I, GCMRC, LCR Channel Catfish Monitoring Little Colorado 

River

10-Jun 25-Jun Project F, GCMRC, Grand Canyon Youth Partners in Science Grand Canyon

12-Jun 22-Jun Paiute Cultural Monitoring Grand Canyon

17-Jun 28-Jun Project D, GCMRC, Ground Truthing Post Overflight Grand Canyon

25-Jun 6-Jul Project G, GCMRC, LCR Humpback Chub Monitoring Little Colorado 

River

26-Jun 27-Jun Project G, GCMRC, Juvenile Humpback Chub Monitoring in 

Lees Ferry Glen Canyon

28-Jun 18-Jul Project G, GCMRC, Juvenile Humpback Chub Monitoring Grand Canyon

8-Jul 23-Jul Project I, GCMRC, Grand Canyon Youth Partners in Science Grand Canyon

12-Jul 16-Jul Project H, AGFD, Lees Ferry Fish Population Monitoring Glen Canyon

14-Jul 21-Jul Project F, GCMRC, Grand Canyon Youth Partners in Science Grand Canyon

10-Aug 18-Aug Project C, GCMRC, Terrestrial Vegetation Monitoring Grand Canyon

5-Aug 13-Aug Navajo Cultural Monitoring Grand Canyon

13-Aug 23-Aug Hopi Cultural Monitoring Grand Canyon

18-Aug 2-Sep Project A, GCMRC, Water Quality and Fine Sediment 

Monitoring Grand Canyon

21-Aug 30-Aug Zuni Cultural Monitoring Grand Canyon

25-Aug 8-Sep Project C, GCMRC, Terrestrial Vegetation Monitoring Grand Canyon

3-Sep 13-Sep Hualapai Cultural Monitoring Grand Canyon

4-Sep 20-Sep Project G, USFWS, Mainstem HBC Monitoring Grand Canyon
8-Sep 10-Sep Project C, GCMRC, Terrestrial Vegetation Monitoring Diamond Down

8-Sep 12-Sep Project I, GCMRC, LCR Channel Catfish Monitoring Little Colorado 

River

14-Sep 24-Sep Project G, USFWS, LCR Humpback Chub Monitoring Little Colorado 

River

24-Sep 18-Oct Project G, GCMRC, Juvenile HBC Monitoring Grand Canyon

27-Sep 1-Oct Project H, AGFD, Lees Ferry Fish Population Monitoring Glen Canyon

29-Sep 15-Oct Project B, GCMRC, Campsite and Sandbar Monitoring Grand Canyon

19-Oct 29-Oct Project G, USFWS, LCR Humpback Chub Monitoring Little Colorado 

River

26-Oct 29-Oct Project G, GCMRC, HBC Monitoring Below Diamond Creek Diamond Down

4-Nov 9-Nov Project H, GCMRC, Lees Ferry Trout Population Monitoring Glen Canyon