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Stream Tracker is seeking volunteers to document stream conditions throughout Arapaho & Roosevelt National Forests along the Colorado Front Range. 

We are looking for observations of streamflow presence or absence, as well as photos of flow conditions, of any small streams that intersects trails and roads throughout the Arapaho & Roosevelt National Forests (ARNF). To help get you started, we have selected possible hiking trails on the forest as well as identified possible stream points for you to navigate to on each of these trails. These are by no means the only places and the only points you can visit. You can add points of your own at any time. 


Familiarize your self with Stream Tracker. Take a look at the Quick Start Guide for how to join Stream Tracker, download the mobile app, navigate to sites, collect data (using the app or paper datasheets), and upload observations.


Choose where you would like to track streams. As a starting point, you can view possible trails with links to trail information (where available). Feel free to navigate to other roads or trails that are not listed here.


Download additional resources to help you navigate to sites. We strongly recommend downloading a third-party offline navigation app that will allow you to add .kmz layers of ARNF trails and stream tracker points. You can navigate to established sites within the Anecdata app, however, there is no base map when using the app offline which makes navigation a bit trickier. Read more on downloading map layers and using a third-party app to navigate. 


Go stream track! Establish new sites or revisit your favorite sites multiple times from now through the end of September to track changes in flow conditions. Look here for further guidance on what a stream tracker site looks like when establishing new sites or searching out current sites.  

Why we need your help!

Intermittent streams make up 69% of the total stream lengths on National Forests* and yet these smaller streams are rarely monitored and often poorly mapped. Your observations will be used to improve the mapping of where streams are located and how often they flow. Improved maps and increased monitoring of intermittent streams will then aid in management decisions made for the ARNF such as where streamside buffers are needed, road construction and culvert sizing, and source water protection plans. 

*As mapped in the National Hydrography Dataset

Trails and other resources

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Red Feather Lakes Road (W County Rd 74E)


Mt. Margaret: Site at ~0.8 miles along main trail (Margaret_1). Two more sites (Margaret_2, Margaret_3) on Frog Pond Trail, which is a right turn at about 2.2 miles. Total distance ~6.6 miles.


Lady Moon: Three sites (LadyMoon_1 to LadyMoon_3). Total distance ~4.8 miles.


North Lone Pine Trail:  One site (LonePine_1) ~0.9 miles down the trail, which starts off of County Road 86.

Poudre Canyon (Highway 14)


Greyrock: Site at ~0.1 miles along main trail (PC_Greyrock). The trail splits at ~0.5 miles; the east branch is the main Greyrock Trail, and the west branch is Greyrock Meadows trail. The next site is about 2.1 miles further along the Greyrock Meadows Trail (Greyrock_high). Total distance ~5.2 miles.


Hewlett Gulch: Site on Hewlett Gulch at ~0.15 miles down the trail (PC_Hewlett). Next site at 2 miles (Hewlett_1). 0.1 miles further trail then splits into a loop. Following the loop counter-clockwise, points at 0.4 (Hewlett_2), 1.8 (Hewlett_3), 3.1 miles (Hewlett_4). Total distance ~7.7 miles. 


Young Gulch Thirteen points (Young_1 to Young_13). Total distance ~7 miles.


Dadd Gulch: Five sites (Dadd_1 to Dadd_5). Total distance ~4.4 miles.


Big South: Thirteen sites (BS_1 to BS_13). Total distance ~19 miles.


Blue Lake: Seventeen sites (BL_1 to BL_17). Total distance ~9.4 miles.


Long Draw Road: Eleven points (LongDraw_1 to LongDraw_11) along road ~13 miles. Three more points (LongDraw_12-14) along a primitive trail at the end of the road in the Neota Wilderness. Trail total distance ~2.8 miles.


Trap Park: Trailhead is 3.5 miles along Long Draw Road on south side, take road to Trap Lake parking lot. Two points along trail (Trap_1, Trap_2). Total distance 1.8 miles.

Pingree Park Road (County Road 63E)


Jack’s Gulch & Little Beaver: Trailhead is at the west side of Jack’s Gulch Campground. Trail splits at ~0.6 miles. Jacks_1 is 0.3 miles up right (N) fork; Jacks_2 is 0.3 miles up left (S) fork. To access Little Beaver, continue on S fork an additional ~0.9 miles until next fork. Take right (N) fork up Little Beaver Creek. 4 points (Beaver_1 to Beaver_4) along Little Beaver Trail.


Signal Mountain:  Three sites (SignalMountain_1-3) along trail. Total distance ~5 miles.


Emmaline Lake: Eleven points (eml1-11) along trail. Access from Forest Road 145. Total distance 8.6 miles.

Big Thompson Canyon (Highway 34)


Crosier Mountain: Five sites (Crosier_1-5). Total distance ~4.6 miles.

Highway 36


Lion Gulch: Three sites (Lion_1-3). Total distance ~10 miles.

Highway 72


Buchanan: Access from Middle St. Vrain Rd. Three points (Buchanan_1-3) on Buchanan Pass Trail before split at 4.6 miles. Three more points (Buchanan_4-6) on right fork (St. Vrain Glacier Trail), with last 1.6 miles after trail fork. Three points (Buchanan_7-9) on left fork (continuation of Buchanan Pass trail), with last 1.7 miles after trail fork.


Mitchell Lake: Access from Brainard Lake Rd. Three points (Mitchell_1-3). Total distance ~4 miles.


Pawnee Pass: Access from Brainard Lake Rd.  0.2 miles after trailhead, trail splits. Take left (S) fork (Jean Lunning Trail). Four points (Pawnee_1-4) before trail rejoins Pawnee Pass Trail, in ~1.3 miles. One more point (Pawnee_5) before trail splits again in ~0.8 miles. Take the left (S) fork. Last point (Pawnee_6) is ~1 mile from this last fork.


Sourdough: Access from CR166, road for CU Mountain Research Station. Three points (Sourdough_1-3). Total distance ~5.6 miles.


Devil’s Thumb: Access from Eldora, Hessie Rd. One point (DevilsThumb_1) before trail splits at ~1.6 miles. Left (S) Fork is King Lake Trail, which has one point (DevilsThumb_3) ~3.4 miles up the trail. Right Fork is a continuation of Devil’s Thumb Trail, which forks again ~1 mile after first fork. Left (S) trail at this fork is Woodland Lake Trail, which has two points (DevilsThumb_3-4), the second of which is ~1 mile down the trail. Right (N) trail at fork is continuation of Devil’s Thumb Trail, which forks again in ~1.5 miles. Left (S) trail at fork is continuation of Devil’s Thumb Trail, which has one point (DevilsThumb_5) ~1.2 miles after fork. Right fork is Diamond Lake trail (below).


Diamond Lake: Access from Devil’s Thumb trail (above). Three points (Diamond_1-3), last of which is ~2.9 miles from intersection with Devil’s Thumb trail.


Jenny Creek: Access from Eldora Mt. Ski Area. Four points (Jenny_1-4). Total distance ~7 miles.    

Highway 119


Forest Lakes and South Boulder Creek: Access from Gilpin County Road 16. Trail splits ~1.1 miles after trailhead at East Portal. Right (N) fork is Forest Lakes Trail with 5 sites (Forest_1-5), last of which is ~1.4 miles from fork. Left (S) fork is South Boulder Creek trail with 5 sites (SBoulder_1-5), last of which is ~2.4 miles from fork.