Alaska Unit 20A and the Tanana Flats
The vastness of Alaska is both its allure and its challenge for hunters. While the dream of pursuing big game in pristine wilderness calls to many, the sheer scale and complexity of navigating Alaska's Game Management Units can be daunting. Unit 20A, encompassing a significant portion of the famed Tanana Flats, is a prime example—it's a legendary destination for moose and caribou, but it demands meticulous planning and a deep understanding of its unique environment. This guide will meticulously break down the geography, species, regulations, and strategies crucial for a successful and ethical hunt in this iconic Interior Alaska region.
The Grand Landscape of Alaska's Unit 20A: Tanana Flats Explained
Unit 20A is not just a place on a map; it's an ecosystem unto itself, defined by its flat, expansive terrain, winding rivers, and a mosaic of forest and tundra. Understanding its geography and the diverse habitats it offers is the absolute first step to wrapping your head around hunting here. It's a huge unit, encompassing a substantial portion of the Interior, and it’s critical to remember that "Tanana Flats" isn't a single, uniform landscape but a complex tapestry.
Defining Unit 20A's Unique Geography
Unit 20A stretches south from Fairbanks, primarily comprising the low-lying, often wet, and densely vegetated plain known as the Tanana Flats. This area is characterized by its anastomosing river systems, most notably the Tanana River and its tributaries, which create countless sloughs, oxbow lakes, and marshy areas. The flatness means that water drainage can be slow, leading to extensive wetlands and bogs, especially during and after heavy rains or snowmelt. While much of the unit is flat, it does extend into some of the foothills of the Alaska Range to the south, offering a bit more elevation and different habitat types as you move away from the main river valleys. The sheer scale is difficult to grasp until you're there; what looks like a short distance on a map can be days of slogging through muskeg.
The boundaries of 20A generally follow major rivers like the Tanana to the north and west, and include areas south towards the Alaska Range. This geography is a key player in how game animals move and where they concentrate. The vastness means that pinpointing exact locations requires diligent scouting, both from afar using satellite imagery and on the ground or in the air. For instance, knowing where the major river channels carve through the landscape helps predict where moose might be found browsing along willow-choked banks or crossing open sloughs.
Ecosystems and Habitat: What Thrives Here
The Tanana Flats is a patchwork of distinct ecosystems, each supporting different facets of the wildlife here. The dominant landscape consists of black spruce forests, often interspersed with birch and aspen in higher, drier areas, or along old burn scars. These spruce stands, while seemingly dense, are often underlain by thick moss and permafrost, making travel difficult. However, it's the willow and dwarf birch communities found along river corridors, in old burns, and within the extensive wet meadows and bogs that are the real game producers. These are prime browsing grounds for moose, offering abundant forage. What Moose Eat in a Ten-Year-Old Burn can give you a better idea of how these different habitats attract big game.
Further south, as the land gently rises towards the Alaska Range, you start to see more upland tundra and open country, which can be important for caribou, especially during their migratory movements. The sheer amount of water, from the major rivers to myriad small ponds and lakes, also provides critical habitat for waterfowl and allows for unique float hunting opportunities. The challenge for hunters is less about finding "good habitat" in general, but rather identifying specific pockets that are actively being used by game at the time of their hunt, as conditions can change rapidly with water levels and seasonal forage availability. This dynamic environment means that what worked last year might not be the hot spot this year.
Pursuing Big Game: Moose and Caribou in the Tanana Flats
Unit 20A is renowned for its big game, primarily moose and caribou, attracting hunters from all over. These aren't easy hunts; the animals are often spread out across vast, challenging terrain, but the rewards can be incredible. Understanding their habits and preferred areas within the unit is paramount.
The Legendary Moose Hunting of 20A
When people talk about moose hunting in the Interior, Unit 20A almost always comes up. It consistently produces some of the largest Alaska-Yukon moose in the state, making it a dream destination for many. The sheer density of moose, particularly in certain areas of the Flats, is impressive. These moose thrive in the extensive willow and birch habitat along the numerous river systems and in areas recovering from past wildfires. During the early September season, bulls are often still in their bachelor groups, feeding heavily in the lush browse before the rut kicks in. As the rut approaches in mid-to-late September, they become more vocal and begin actively seeking cows, making calling a highly effective tactic. For more on this, check out Calling Bull Moose During the Alaska Rut.
Hunting moose in 20A often involves extensive glassing from small knolls (if you can find them in the flat country), or more commonly, slowly cruising river systems by boat or ATV. The sheer size of these animals means that once you get one down, the real work begins. Quartering a bull moose in the field and packing out hundreds of pounds of meat through wet, boggy terrain is a Herculean task, often requiring multiple trips or specialized equipment. Hunters must also be acutely aware of Alaska Moose Meat Salvage Requirements to ensure they don't violate regulations regarding wanton waste. The patience required to call in a cagey bull, or the sheer grit to pack one out, defines a 20A moose hunt.
Caribou Movements and Opportunities
While moose are the primary draw, Unit 20A also offers opportunities for caribou, though their presence is more migratory and less predictable. The unit is within the range of the Delta Caribou Herd. These animals are constantly on the move, and their migration patterns can shift significantly year to year, influenced by weather, forage, and predator pressure. Caribou generally prefer more open country than moose, often favoring the drier tundra and upland areas, especially as they move between summer and winter ranges.
Hunting caribou in 20A often involves intercepting migrating herds or finding smaller, resident groups in specific areas. This can mean long hours of glassing, covering a lot of ground by foot, or using ATVs on designated trails. Unlike moose, which can be called in, caribou hunting is often a game of patience and positioning, waiting for the animals to come to you or carefully stalking them across open terrain. Knowing the historical migration routes and current herd movements (often communicated by the Alaska Department of Fish and Game) is crucial. Caribou Herds of Alaska and How They Move can provide broader context for their behavior. Success often hinges on being in the right place at the right time, which requires flexibility and a willingness to adapt your plans.
Other Species: Bears and Small Game
Beyond moose and caribou, Unit 20A also supports populations of black bears and, in some areas, brown bears (grizzlies). Black bears are common throughout the timbered areas and along riparian corridors, especially during spring when they emerge from dens and feed on early greens, or in the fall when they seek out berries. While not the primary target for most 20A hunters, they offer an additional opportunity for those with a valid tag. Be aware that Alaska Black Bear Bait Station Registration is required if you plan to use bait.
Brown bears, or grizzlies, are also present, particularly as you move closer to the foothills of the Alaska Range. While less numerous than black bears, they are a significant presence and hunters must always be bear-aware, especially when dealing with a downed animal. Bear Safety While Butchering a Kill in Alaska is not just advice, it's a critical mindset.
For those looking for a diverse experience or some camp meat, small game and waterfowl are also abundant. Ptarmigan species (Willow, Rock, and White-tailed) can be found in appropriate habitats, offering a fun challenge and a delicious addition to the camp menu. Waterfowl, particularly ducks and geese, are plentiful in the numerous wetlands and river sloughs, especially during migration periods. Waterfowl and Ptarmigan as Camp Meat is a good read if you're looking to diversify your harvest.
Navigating the Vastness: Accessing Unit 20A's Hunting Grounds
Getting into and around Unit 20A is a primary consideration, and it's not a trivial one. The unit's size and terrain dictate that you need a robust access plan, whether you're driving in, flying, or floating. This is where modern navigation tools truly shine, helping you understand the lay of the land before you even set foot in it.
Road System and ATV Access Points
Unit 20A has some road system access, though it's important to understand its limitations. The Parks Highway (Alaska Route 3) runs along the western boundary of the unit, offering some points of entry. Additionally, several secondary roads and trails branch off from the main highways, particularly around Fairbanks. These can lead to initial access points for truck and ATV use. However, much of the interior of the Tanana Flats is not reachable by conventional vehicles. ATV trails are often the lifeline here, allowing hunters to penetrate deeper into the vast wilderness. It's crucial to consult current regulations regarding ATV Trail Rules on Alaska State Land, as restrictions can apply, especially in certain seasons or specific areas. Many trails are simply old seismic lines, winter trails, or game trails that have been widened by previous users. They can be incredibly rough, wet, and challenging, often turning into mud bogs after rain.
Careful planning with a detailed mapping application like onX Hunt is essential. You can identify potential access points, scout out trails, and mark areas of interest from home. Knowing land ownership boundaries is also critical, as some sections might be private or Native Corporation land, requiring permits. You’ll need to understand how far you can reasonably push in with an ATV and what your recovery plan is if you break down or get stuck, which is a very real possibility. Remember, "road system access" in Alaska is often a far cry from what one might expect in the Lower 48.
Air Charters and Float Plane Operations
For those looking to get deep into the untouched reaches of Unit 20A, especially the more remote parts of the Tanana Flats, air charters are often the most practical, and sometimes only, option. Float planes can access the countless lakes and sloughs that dot the landscape, while wheel planes can utilize gravel bars on major rivers or even some of the drier, more open tundra strips. This method allows hunters to bypass the brutal terrain and reach prime hunting grounds quickly and efficiently.
Booking a reliable air taxi is critical. Discussing your hunting goals, target species, and desired timeframe with the pilot well in advance is key. They often have invaluable local knowledge of good drop-off spots and recent game activity. Factors like weight limits are paramount; you'll need to be disciplined about your gear. Fly-In Hunting: Working With an Alaska Transporter Pilot details many of these considerations. Remember, weather can ground planes for days, so building extra buffer days into your schedule is not just a suggestion, it's a necessity. This also influences your gear; a good satellite communication device like an InReach is essential for regular check-ins and emergency contact.
River Access and Float Hunting Potential
The extensive river systems of Unit 20A, particularly the Tanana River itself and its many tributaries, offer fantastic opportunities for float hunting. This method combines transportation with hunting, allowing you to cover vast distances while systematically hunting the riparian zones which often hold high concentrations of moose. Floating generally involves putting in at an accessible point (often by road or air charter) and floating downstream, stopping to glass, call, and hunt specific areas.
A successful float hunt requires specialized gear, including durable rafts or canoes capable of carrying significant loads (including a potential moose), and meticulous planning. Knowing the river's characteristics—currents, potential log jams or sweepers, and available take-out points—is vital. Choosing a Float Hunt River by Water Level and Length is a comprehensive resource for this. This method is physically demanding but incredibly rewarding, offering a truly immersive wilderness experience. It also provides the logistical advantage of being able to load a downed animal directly into your raft, alleviating some of the packing burden associated with ground hunts. However, river conditions can change quickly, so flexibility and experience are key.
Understanding Regulations and Planning Your Hunt in 20A
Alaska's hunting regulations can be complex, and Unit 20A is no exception. Between drawing permits, harvest tickets, and various season structures, it's easy to get lost in the details. A solid understanding of these rules is not just about staying legal, but about maximizing your chances of success.
Permit Requirements and Drawing Success
Unit 20A primarily offers hunts through drawing permits for its most sought-after big game, particularly moose. This means that hunters must apply in advance, typically during the November 1 to December 15 application window, and are selected through a lottery system. These hunts are highly coveted, and draw odds can be challenging, reflecting the unit's reputation for producing quality animals. How Alaska's Big Game Drawing Permits Work outlines the entire process. It's not a preference point system like some other states; every year, the odds essentially reset, giving everyone a fresh chance. You can apply for multiple hunt numbers within the unit, but there's a strict limit on how many choices you can make statewide.
For species like caribou or black bears, there may be general season harvest tickets or registration hunts available, which are typically easier to acquire. However, even these have specific rules regarding reporting and often close on quota once a certain number of animals are taken. It's absolutely crucial to consult the current Alaska hunting regulations booklet for the most up-to-date information, as season dates, bag limits, and permit requirements can change annually. Tools like GoHunt can be invaluable for researching draw odds, application strategies, and historical success rates for specific hunt numbers in 20A, helping you make informed choices.
| Permit Type | Species | Acquisition Method | General Odds/Availability | Key Requirement |
|---|---|---|---|---|
| Drawing Permit | Moose (Dall Sheep, Goat in other units) | Lottery Application | Often Low (High Demand) | Apply Nov 1 – Dec 15 |
| Harvest Ticket | Black Bear, Caribou (General) | Over-the-counter | High (Readily Available) | Free, but must report |
| Registration Permit | Moose, Caribou (Specific hunts) | Sign-up, first-come | Variable (Quota-based) | Must register & report |
Season Dates and Quota Closures
The hunting seasons in Unit 20A are carefully structured to manage wildlife populations and provide opportunity. For moose, seasons typically open in early to mid-September, coinciding with the pre-rut and early rut period, when bulls are most active and receptive to calling. Caribou seasons might vary based on herd movements and management objectives, with both fall and winter periods potentially available. It's critical to know the precise dates for your chosen hunt and species.
Many hunts, particularly registration hunts, are subject to emergency order closures. This means that if the quota for a specific area or species is met earlier than anticipated, the season can be closed without much warning. This is especially common for caribou hunts where large herds can be harvested quickly. Hunters need to stay informed, checking the Alaska Department of Fish and Game's website regularly for emergency orders once they are in the field or approaching their hunt dates. Relying on outdated information can lead to a violation. For instance, Alaska Emergency Orders That Close a Season Early happen every year, and being caught unprepared can ruin your hunt.
Harvest Reporting and Ethical Considerations
Alaska takes harvest reporting seriously, and failing to report a kill can lead to fines and loss of future hunting privileges. For drawing and registration permits, detailed harvest reports are mandatory, typically with a specific deadline after the close of the season. Even for harvest tickets, there's a reporting requirement. Make sure you understand exactly what needs to be reported, how to do it, and by when.
Beyond legal requirements, ethical hunting is paramount in Unit 20A. This includes making clean, humane kills, salvaging all edible meat as required by law (no wanton waste), and respecting the land and other users. The vastness of the Flats means that packing out meat can be physically brutal, but it is a non-negotiable part of the hunt. This also extends to trophy care, ensuring proper handling of capes and antlers for taxidermy. If you're successful with a moose, reviewing Quartering a Bull Moose Alone in the Field will be a lifesaver. Furthermore, managing your impact on the fragile tundra environment, especially with ATVs, is part of being a responsible hunter. Pack out everything you pack in, and leave no trace.
Essential Preparation for a Unit 20A Adventure
Hunting in Unit 20A is not for the faint of heart or the unprepared. The environment is harsh, the distances are vast, and the physical demands are extreme. Proper preparation, both physically and in terms of gear, can literally make or break your hunt and even your safety.
Physical Conditioning and Mental Fortitude
Let's be blunt: a moose or caribou hunt in the Tanana Flats is a marathon, not a sprint. You'll be walking, possibly slogging through knee-deep muskeg and water, climbing over downed timber, and potentially packing hundreds of pounds of meat for miles in challenging conditions. The terrain might be flat, but that doesn't mean it's easy. It's physically exhausting. Months of dedicated physical conditioning are not just recommended, they're essential. Focus on endurance, strength training (especially core and leg strength), and packing heavy loads for long distances. Don't underestimate the mental game either. Being cold, wet, tired, and facing setbacks in remote country can quickly erode morale. A resilient mindset, patience, and the ability to stay positive despite discomfort are as important as strong legs. Many hunters train by carrying a heavy pack over uneven ground to simulate packing out game. Backpack Hunting in Alaska: Gear Weight and Meat Loads offers great insights into what to expect for pack weight.
Gear Selection for Interior Alaska Conditions
Your gear needs to be rugged, reliable, and appropriate for the potentially wet and cold conditions of Interior Alaska in the fall. Layering is key: good base layers to manage moisture, insulating layers for warmth, and a waterproof/windproof outer shell that can withstand constant abuse. Footwear is paramount. Forget your comfortable hiking boots; you'll likely need chest waders or tall, knee-high rubber boots for navigating the extensive wet areas. Bring multiple pairs of socks.
Beyond clothing, a reliable rifle in an appropriate caliber for moose or caribou is essential, along with optics (binoculars and a spotting scope if covering open ground for caribou), a good knife, game bags for meat, and a sturdy pack frame. Navigation tools are non-negotiable. A GPS unit and physical maps are critical backups to your smartphone with a mapping app like onX Hunt. Consider a satellite communication device for safety. A robust tent and sleeping system capable of handling cold temperatures and potentially high winds are also crucial. Don't forget bear spray or a large-caliber sidearm for personal protection in bear country.
| Item Category | Essential Items for Unit 20A | Why It's Crucial |
|---|---|---|
| Clothing | Layered System (Base, Mid, Outer) | Adapts to changing temps, sheds rain/wind |
| Waterproof/Breathable Outerwear | Essential for constant rain, snow, bog | |
| Chest Waders or Tall Rubber Boots | Navigating deep water and muskeg | |
| Wool/Synthetic Socks (multiples) | Keeps feet dry, prevents blisters | |
| Shelter | Four-Season Tent & Sleeping Bag | Withstands cold, wind, rain; provides warmth |
| Navigation | GPS Unit, Satellite Phone/InReach | Lifeline in remote areas, track progress |
| onX Hunt / GoHunt (Offline Maps) | Detailed terrain, land ownership, waypoints | |
| Compass & Paper Maps | Essential backup, never fails | |
| Hunting | Reliable Rifle (e.g., .300 Win Mag) | Ethical harvest of large game |
| Quality Optics (Binos, Spotting Scope) | Locating game in vast terrain | |
| Sharp Knife & Game Bags | Field dressing, meat protection | |
| Pack Frame & Backpack | Transporting gear and heavy meat loads | |
| Safety | Bear Spray / Sidearm | Protection in bear country |
| First-Aid Kit | Addressing injuries in remote areas | |
| Water Filter/Purifier | Safe drinking water source | |
| Misc. | Headlamp, Fire Starter, Repair Kit | Camp comfort, emergency use, gear upkeep |
Field Care and Meat Preservation
The immense amount of meat from an Alaska bull moose or caribou demands meticulous field care, especially if you're hunting in warmer early September weather. Rapid cooling of the carcass is critical to prevent spoilage. This often means quartering the animal quickly, skinning it out, and getting the meat into breathable game bags. Hanging the quarters in a shady, airy spot, away from the ground, is ideal. If daytime temperatures are consistently warm, you might need to actively cool the meat or even transport it out rapidly. Hanging Meat in Warm September Weather offers invaluable practical advice on this.
Protecting the meat from flies and bears is also a constant battle. Flyproof game bags are a must, and a bear fence or vigilant watch is necessary to deter scavengers. If flying out meat, ensure it's completely cooled and packaged properly for transport, often in wax-lined boxes. For trophy animals, proper caping and skull care are also essential from the moment the animal is down. This ensures your trophy is preserved for the taxidermist.
Strategies for Success in the Tanana Flats
Hunting in Unit 20A isn't just about showing up; it's about developing strategies tailored to the unique environment and the behavior of the animals. From pre-hunt scouting to in-field tactics, every step counts toward a successful outcome.
Effective Scouting and In-Field Navigation
Pre-hunt scouting, even from afar, is critical for Unit 20A. Utilize satellite imagery to identify potential pinch points, willow-choked sloughs, old burn scars, and travel corridors that moose or caribou might use. Look for historical game concentrations, water sources, and potential access routes. Tools like onX Hunt allow you to layer different map views, mark waypoints, and measure distances, creating a detailed digital hunting plan before you ever leave home. This can help you pinpoint specific areas to focus on, rather than wandering aimlessly in the vast flats. Scouting a Unit From Satellite Imagery Before You Fly can help you get started.
Once in the field, accurate navigation is paramount. The flat, often featureless terrain of the Tanana Flats can be disorienting, and it's easy to get turned around, especially in dense brush or fog. Rely on your GPS, satellite maps on your phone (downloaded for offline use!), and a compass. Always pay attention to landmarks, even subtle ones like distinct groups of trees or bends in a slough, to maintain your bearings. Marking your camp location and any significant waypoints (like a downed animal or a water source) is a habit you should cultivate immediately. Good navigation isn't just about finding your way; it's about staying safe and efficient.
Calling and Stalking Tactics for Moose
For moose in Unit 20A, especially during the rut, calling can be an incredibly effective tactic. Bulls are territorial and responsive to cow calls and the sounds of a bull raking brush. The key is to understand the timing of the rut and to be patient. Early in the season, subtle cow calls might entice a curious bull. As the rut intensifies, more aggressive bull grunts and raking can challenge a dominant bull to come investigate. Knowing Best Moose Call Sequence for the Early Rut can make a huge difference.
Stalking in the Tanana Flats is a slow, methodical affair. The dense willows and wet ground often mean noisy movement. Hunters must use the wind to their advantage, move slowly, and listen intently for the sounds of a moose feeding, breaking brush, or grunting. The sheer size of moose can make them surprisingly hard to spot in thick cover, so patience and careful observation are vital. If you get a bull to respond to a call, set up in a location with good visibility, preferably with the wind in your favor, and be prepared for a close encounter.
Caribou Interception and Group Hunting
Caribou hunting in Unit 20A, especially for migratory herds, often shifts from individual stalking to intercepting groups of animals. This requires covering significant ground, either on foot or with ATVs, to locate moving herds. Once a herd is spotted, the strategy becomes about positioning yourself ahead of their movement, or stalking carefully to get within range. Caribou have excellent eyesight and are often in open country, making long stalks challenging.
Group hunting can be particularly effective for caribou. Spreading out hunters along a suspected migration route or across a vast plain can increase the chances of intercepting animals. Communication within the group is vital to coordinate movements and avoid pushing animals out of an area. While caribou don't respond to calling in the same way moose do, understanding their travel corridors and feeding patterns is crucial for successful interception. Once a caribou is down, efficiency in field dressing and packing is key, especially if other animals are still in the vicinity.
Disclaimer
This article is for general informational purposes only and does not constitute professional advice. Laws, prices and regulations vary by location and change over time. Consult a qualified professional for guidance on your specific situation.
