Greeley to Alamosa is 297 miles and takes about 5h 32m via I 25, with a fuel budget near $52 and enough daylight to finish in a day. This drive stays within Colorado, moving from the Mountain West region to another part of the Mountain West. You'll spend a good portion of the trip on surface roads, so expect a more relaxed pace compared to pure interstate travel. It's a single-day trip, making it a straightforward option if you're looking for a direct connection between these two Colorado cities.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
148.5 miles from Greeley, CO
A natural place for your longest stop of the day
, about 2h 42m into the drive
.
Main Roads
Road
Distance
Duration
West 7th Street
71.4 mi
1h 27m
John F. Kennedy Memorial Highway
53.4 mi
53m
I 25
45.7 mi
47m
E-470
35.1 mi
35m
Ronald Reagan Highway
22.9 mi
23m
County Road 49
21.9 mi
25m
I 76
15.8 mi
15m
North Freeway
9.7 mi
11m
Longest stretch:
West 7th Street
— 71.4 mi, about 1h 27m
Traffic on I-25
Hour-of-day weekday pattern from 24 FHWA count stations on your route.
Peak
4 PM
~3,848 veh/hr typical
· worst 4,464
Quietest
2 AM
~188 veh/hr
Peak-to-quiet ratio
20.5×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 105 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Greeley, CO and Alamosa, CO.
1
Start on 19th Avenue
262 ft·18 sec·19th Avenue
2
Turn left onto US 34 Business
0.1 mi·16 sec·9th Street
3
Turn left onto 21st Avenue
495 ft·29 sec·21st Avenue
4
Turn left onto US 34 Business
1.1 mi·1 min·10th Street
Use the straight / left lanes.
5
Turn right onto US 34 Business; US 85 Business
0.9 mi·1 min·8th Avenue
Use the right lane.
6
Turn left onto US 34 Business
2.7 mi·4 min·18th Street
Use the left lane.
7
Keep slight left at fork onto East 18th Street
0.2 mi·12 sec·East 18th Street
8
Continue on East 18th Street
0.9 mi·1 min·East 18th Street
9
Turn right onto CR 49
22 mi·25 min·County Road 49
Use the straight / right lanes.
10
Take the ramp
0.2 mi·22 sec
Toward I 76 West
11
Merge onto I 76
16 mi·15 min·I 76
Use the straight / slight right lanes.
12
Take the exit
1.0 mi·2 min
Exit 18Toward E470 Toll South: LimonUse the straight / slight right lanes.
13
Merge onto E470
35 mi·35 min·E-470
Use the straight / slight right lanes.
14
Take the exit
0.2 mi·26 sec
Exit 1AToward I 25: Denver, Colorado Springs
15
Keep slight left at fork
0.7 mi·1 min
Exit 1AToward I 25 South: Colorado SpringsUse the straight / slight left lanes.
16
Merge onto I 25
46 mi·47 min·I 25
Use the straight / slight right lanes.
17
Continue on I 25
8.8 mi·10 min·Monument Valley Freeway
Use the straight / slight right lanes.
18
Continue on I 25; US 24
0.2 mi·12 sec·Ronald Reagan Highway
19
Keep slight left at fork onto I 25
23 mi·23 min·Ronald Reagan Highway
Use the straight / slight right lanes.
20
Continue on I 25
13 mi·12 min·John F. Kennedy Memorial Highway
Use the straight / slight right lanes.
21
Continue on I 25
2.6 mi·2 min·North Freeway
Use the straight / slight right lanes.
22
Take the exit
0.4 mi·32 sec
Exit 100BToward 29th Street
23
Merge onto I 25; US 50
1.0 mi·1 min·North Freeway
24
Take the exit
0.1 mi·12 sec
Exit 99BToward 13th StreetUse the slight right lane.
25
Continue on this road
0.2 mi·18 sec·this road
26
Merge onto I 25; US 50 Bus
6.1 mi·7 min·North Freeway
Use the straight lane.
27
Continue on I 25
41 mi·40 min·John F. Kennedy Memorial Highway
28
Take the exit onto I 25 Business
2.8 mi·4 min·I 25 Business
Exit 52Toward South I 25 Business, US 160 West: Walsenburg, Alamosa
29
Turn right onto US 160
71 mi·1 hr 27 min·West 7th Street
Use the straight / right lanes.
30
Continue on US 160; CO 17
0.3 mi·39 sec·Broadway Avenue
31
Continue on US 160; CO 17
521 ft·18 sec·Denver Avenue
32
Turn right onto Fourth Street
0.4 mi·1 min·Fourth Street
33
Turn right onto Ross Avenue
67 ft·1 sec·Ross Avenue
34
Arrive at destination
Ross Avenue
Trip Plan
Given the 5.5-hour estimated drive time, leaving Greeley in the morning should get you to Alamosa with plenty of daylight to spare. While the drive is manageable in one day, there's only one recommended stop, so plan for breaks as needed. Keep an eye on your fuel gauge, especially during the longer stretches on surface roads where services might be less frequent. The total fuel cost is estimated around $52, so factor that into your budget. This route is flexible due to its single-day duration, allowing for spontaneous stops if you find something interesting along the way.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 148.5 miles from Greeley, CO, or about 2h 42m into the drive.
The longest continuous stretch on this route runs about 71.4 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 65 miles or 1h 14m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 148.5 miles or 2h 42m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 25m
Traffic, exits, and arrival timing usually matter more near Alamosa, CO than in the middle of the route.
Before You Leave
+
Open the route before leaving Greeley, CO so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Greeley, CO
This is one driving day of about 297 miles and 5h 32m.
Your first comfortable stop window is around 65 miles from Greeley, CO.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on West 7th Street for about 71.4 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 23
5 decision points cluster between mile 0.3 and 175 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0.3 mi into trip|~1m in|US 34 Business / 10th Street
Turn left onto US 34 Business / 10th Street
Lane positioning matters here
Use the straight / left lanes.
6
1.3 mi into trip|~3m in|US 34 Business; US 85 Business / 8th Avenue
Turn right onto US 34 Business; US 85 Business / 8th Avenue
Lane positioning matters here
Use the right lane.
7
43.7 mi into trip|~52m in
Take the exit toward E470 Toll South: Limon
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 18
Toward E470 Toll South: Limon
8
80 mi into trip|~1h 29m in
Keep slight left at fork toward I 25 South: Colorado Springs
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight left lanes.
Exit 1A
Toward I 25 South: Colorado Springs
7
175 mi into trip|~3h 9m in
Take the exit toward 13th Street
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 99B
Toward 13th Street
Fuel & Cost
Regular Gas
$51.79 one way
$103.58 round trip
$4.43/gal25.4 MPG avg104 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.68
$54.77
$109.54
premium
$5.02
$58.68
$117.35
diesel
$6.28
$73.38
$146.77
Estimated Tolls: $4.22
E-470
(35.1 mi)$4.22
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$52
Tolls
$4
Meals
$25–$50
Total
$81–$106
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 103.9 kg one way.
Prices: EIA weekly data, 2026-10-19.
Driving Electric?
About $31 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
89.1
1
$31.19
$14.26
Efficient EV
74.3
0
$25.99
$11.88
EV Truck/SUV
118.8
1
$41.58
$19.01
Gas CO2
104 kg
EV CO2
35 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Oct 19, 2026
Origin
Greeley, CO
Evening
in Greeley on Thursday
Local time
5:03 PM
MDT
Current temp
41°F
Mostly Cloudy
N 5 mph0% chanceLive forecast
Destination
Alamosa, CO
Evening
in Alamosa on Thursday
Local time
5:03 PM
MDT
Current temp
29°F
Partly Cloudy
SSW 5 mph1% chanceLive forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
12 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 32m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Florissant Fossil Beds National Monument
National Monument
Beneath a grassy mountain valley in central Colorado lies one of the richest and most diverse fossil deposits in the world. Petrified redwood stumps up to 14 feet wide and thousands of detailed fossil...
25 mi from route
~62 min detour
$10
near mile 133.1
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route involves about 28% highway driving, primarily on I 25. The longest stretch without exiting the main highway is 71.4 miles on West 7th Street. You'll notice the transition from more urban-feeling roads near Greeley to more open, rural cruising as you head south. The profile is mostly surface roads, so be prepared for varying speed limits and more local traffic.
Only 28% highway — the rest is turn-by-turn surface driving.
34 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 71.4 mi on West 7th Street.
How Hard Is This Drive?
10/10
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.3 miles in near US 34 Business / 10th Street.
Driving Effort10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 23 significant decision points across 297 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 0.3 miles (US 34 Business / 10th Street): Lane positioning matters here; at 1.3 miles (US 34 Business; US 85 Business / 8th Avenue): Lane positioning matters here; at 43.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Elevation Profile
Mountain driving with significant elevation changes
8,995 ft4,674 ft
Total Climb
6,283 ft
Total Descent
3,414 ft
Highest Point
8,995 ft
~254.6 mi in
Elevation Range
4,321 ft
Notable High Points
6,833 ft at ~106.1 miles+546 ft prominence
8,995 ft at ~254.6 miles+1,219 ft prominence
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Greeley, CO and Alamosa, CO, road signs point toward E470 Toll South: Limon and Colorado Springs.
Greeley is a city of about 110,000 in the north central region of the western U.S. state of Colorado. The seat of Weld County, the city lies 49 miles (79 km) north-northeast of Denver on the South Platte River, the historic route of the Pikes Peak Gold Rush of 1858-1861. The city was founded in 1870 by Nathan Meeker, who named it for Horace Greeley, editor of the New York Tribune and promoter of the Union Colony of Colorado. Greeley is the home of the University of Northern Colorado. The most well-known event in the town is the annual Greeley Independence Stampede, which attracts an estimated 400,000 attendees every summer.
Top landmarks
•Greeley Masonic Temple — masonic temple in Colorado, United States of America
•Greeley Union Pacific Railroad Depot — railway station in Greeley, the United States of America
•Greeley Tribune Building — building in Greeley, United States of America
Alamosa is a small town in south central Colorado, USA. It is noteworthy as the nearest significant town to Great Sand Dunes National Park, a similarly near neighbor of the eastern hub of a superb scenic railroad, and also because during the winter, it frequently records the lowest temperature of the day of any place in the contiguous United States.
Top landmarks
•Alamosa County Courthouse — United States historic place
Doable as a same-day drive at 5h 32m. Total distance: 297 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 32m drive, comfortable solo distance.
Scenic Drive
Mostly surface roads route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 71.4 miles on West 7th Street. The full list of main roads is in the Roads section above.
Expect about $4.22 in tolls one way, starting with E-470. Most Northeast and Midwest toll agencies accept E-ZPass; in the West and Texas, transponders like TxTag or FasTrak apply. If you do not have a transponder, cashless tolling plates will mail a bill to the vehicle's registered address — usually with a surcharge, so a rental-car toll pass is often cheaper than paying by mail.
Yes — we found about 8 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Alamosa, CO before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 8 rest areas along the route for bathroom stops.
The main spots that need attention: at 0.3 miles (US 34 Business / 10th Street): Lane positioning matters here; at 1.3 miles (US 34 Business; US 85 Business / 8th Avenue): Lane positioning matters here; at 43.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Yes — Florissant Fossil Beds National Monument. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 5.5 hours each way, a round trip means 11.1 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Alamosa, CO before the return drive.
